Dodge Dart Electrical Systems - REFERENCE BOOK AND TECH NEWS - Service Information Highlights
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Reference Book
Service Information Highlights and Tech News
Dodge Dart Electrical
Systems
REFERENCE BOOK AND TECH NEWS
May 2012
Reference Book
Service Information Highlights and Tech News
Introduction
In this month’s Master Tech program we are going to take another look at the Dodge Dart,
this time we’ll look into the electrical systems. First, we’ll discuss the bus communication
system and the components that make up the Compact U.S. -Wide (CUSW) system (Fig. 1).
Figure 1: CUSW Electrical Topology
TABLE OF CONTENTS: After that we take a look at what it takes
BUS COMMUNICATION ........................ 4 to diagnose the CUSW bus system,
concentrating on the differences between
BUS DIAGNOSTICS ................................ 6
this new CUSW layout and PowerNet.
MODULE REPLACEMENT AND
PROGRAMMING ..................................... 8 The next topic will be the replacement of
SUB-SYSTEMS ...................................... 11 the various modules in the CUSW system
and how to program those modules after
TECH’S CORNER .................................. 16 service (Fig. 2). After that we’ll get into
WARRANTY TIPS .................................. 18 some of the sub-systems.
Service Information Update Reference Book
and Tech News
Note that the Master Tech web program
contains information not found in this
month’s Reference Book. However, you
will need the web program and reference
book, as well as the Tech News, to answer
the questions in the online quiz.
So it’s a good practice to open the
reference book and view its additional
information as you progress through the
web course and to read through the Tech
Figure 2: Module Replacement News before launching the quiz.
We’ll cover the different electrical
subsystems, such as the different ignition
systems and the all new tire-pressure
monitoring system new to the Dodge Dart,
soon to be seen on more Chrysler Group
vehicles.
We’ll also take a look at the vehicle
security system as well as the passive
entry system. Lastly we will cover the
unique features of the HVAC system and
learn how this impacts service (Fig. 3).
Figure 3: HVAC service
May 2012 Page 3
Service Information Update Reference Book
and Tech News
BUS COMMUNICATION
The new CUSW-based communication architecture is new for the Chrysler Group, being
introduced on the 2013 Dodge Dart. The CUSW layout, the architecture, and even some of
the modules are new. The CUSW still uses CAN-C and CAN-IHS bus networks. In the
case of CUSW vehicles, the CAN-C and CAN-IHS circuits are in a star configuration,
similar in appearance to the PowerNet architecture (Fig. 4).
Figure 4: CUSW CAN-C and CAN-HIS Networks
Despite this outward appearance, the communication strategy is different. The modules
are not interchangeable with PowerNet systems. The CUSW layout will be different for
each vehicle, depending on the optional equipment. For example, some vehicles are not
equipped with blind spot monitoring (Fig. 5).
Figure 5: Optional Blind Spot Monitoring
May 2012 Page 4
Service Information Update Reference Book
and Tech News
This means that not all vehicles will have The KIN communicates with the RF Hub
the rear star connector on the CAN-IHS. over a dedicated bus. The RF Hub
Refer to CUSW Job Aid in the Reference triggers the perimeter antennas so the RF
section for more information. Hub can locate and validate a valid finger
operated button integrated key (FOBIK).
One thing to note, the radio frequency
hub (RF Hub) communicates with the CAUTION: On vehicles equipped with a
ignition node module or keyless ignition KIN (Fig. 7), the START button is NOT
node on a dedicated bus that is similar to removable and is the only method, other
a dedicated bus, but operates at lower than remote start, for cranking the
voltages. vehicle.
As with PowerNet, the body control
module (BCM) is the central control
module, acting as the gateway for both
bus systems. The BCM also contains the
build information for the vehicle.
Another similarity with PowerNet is that
the RF Hub acts as the wireless receiver
for the vehicle.
However, different from PowerNet
vehicles, tire pressure monitoring Figure 7: KIN
functions are now performed by the RF
Hub on both base and premium systems. There are up to three power distribution
The ignition node module (IGNM) centers (PDC) on the Dart. The one under
operates differently on CUSW vehicles. the hood, the body control module (BCM),
On vehicles with a standard FOBIK and the auxiliary PDC next to the BCM.
(Fig. 6), the IGNM sends a message to
the RF Hub over a dedicated bus when Entry-level cars are equipped with an
the ignition switch position changes. electronic vehicle information center
(EVIC) that displays driver information
while high-line vehicles have a 178 mm
(7 in.) thin-film transistor (TFT) display
that is configurable based on customer
preferences. (Fig. 8).
Figure 6: Standard FOBIK
On vehicles with Keyless Enter ‘N Go, the
IGNM is replaced by a keyless ignition
node (KIN).
Figure 8: EVIC
May 2012 Page 5
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and Tech News
BUS DIAGNOSTICS
CUSW CAN-C and CAN-IHS are star The instrument panel cluster (IPC) is also
configured networks. In a star-configured connected to both CAN-C and CAN-IHS.
network, the communication circuits However, the IPC only reads information
connect to a central point (or points) in from the networks and does not act as a
the network. The Dodge Dart CAN-C and gateway (Fig. 10).
CAN-IHS networks each use two star
connectors as the central connecting
points. The star connector configuration
makes diagnosis easier because single
modules are easily disconnected from the
network (Fig. 9).
Figure 10: The IPC does not act as a
gateway.
Most cavities in a star connector only
have two terminals, however there is a
single cavity with three terminals. One of
the connections to the star connector has
Figure 9: Star-configured network an additional circuit connected to ground
(Fig. 11). The extra wire in the three-wire
The CAN-C used on CUSW vehicles is connector helps shield the network from
similar to previous CAN-C communication radio and electromagnetic interference.
networks. The voltages and termination The three-wire connector also links the
resistance specifications are similar. The star connector to the DLC and, if
only noticeable differences when working applicable, to another star connector on
with CUSW CAN-C are in the network the same network.
and DLC configurations.
The BCM is the central gateway (CGW).
It connects the CAN-C bus to the CAN-
IHS bus, allowing for communication
between the two networks. The BCM
monitors all CAN communication
networks for failures and can log a
diagnostic trouble code (U-code) if a
malfunction is detected.
Figure 11: Additional connector is
grounded
May 2012 Page 6
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and Tech News
The CAN-C and CAN-IHS networks have terminals located in the data link connector
(DLC). Diagnostic tests for CAN-C and CAN-IHS, such as network voltage and resistance
measurements, are performed using the DLC terminals and Breakout Box CH7002.
The CH7002 currently does not have markings to reflect CUSW vehicles, but can be used with
them. Please refer to the diagram below when using the CH7002 (Fig 12.).
6 CAN-C (+) 14 CAN-C (-)
3 CAN-IHS (+) 11 CAN-IHS (-)
Figure 12: Use this diagram when using the CH7002 on CUSW vehicles.
WARNING: WHEN TAKING rate. This refresh rate can allow minute
MEASUREMENTS WITH A DIGITAL changes in voltage to be missed by a
MULTIMETER AT THE DLC, USE digital meter, whereas an oscilloscope will
MILLER SPECIAL TOOL CH7002 TO show these changes.
PREVENT DAMAGE TO THE DLC
TERMINALS. BE SURE TO NOTE Because of this, when checking a CAN (+)
PROPER PIN LOCATIONS WHEN circuit, any voltage between 2.6 and 3.5
WORKING WITH CUSW VEHICLES. volts may indicate normal operation.
Network voltage on CAN(-) can be
CUSW CAN-C and CAN-IHS networks between 1.3 and 2.5 volts when using a
have the same voltage specifications as digital multimeter.
other CAN networks. When checking
voltages with a digital multimeter, keep
in mind that they have a limited refresh
May 2012 Page 7
Service Information Update Reference Book
and Tech News
MODULE REPLACEMENT AND PROGRAMMING
CUSW vehicles use a new vehicle
configuration strategy called
programming and configuration of
systems integrated, this is called PROXI.
The body control module contains a file
with the vehicle build configuration (Fig.
13). The complete vehicle build
configuration, including the purchased
vehicle content and legally required
operating features based on the region in Figure 13: BCM contains PROXI and build
which it is sold. configuration
During vehicle assembly, a computer sends the PROXI file to all electronic control units
(ECUs) that require configuration. The PROXI message contains specific programming
instructions for each module on CAN-IHS and CAN-C. Refer to figure 14 or service
information, to determine which modules require PROXI configuration during service.
Figure 14: Proxi configured modules are highlighted for clarity
Each time the ignition key is cycled to the If a module does not respond, or responds
ON position, the BCM sends a message to with the incorrect configuration code, a
all PROXI-configured modules on the DTC is set. If this occurs, the BCM will
vehicle. Each module will respond to the make two more attempts to validate that
message with its configuration code. The module. After three incorrect responses
BCM uses the configuration code to verify the odometer will flash (Fig. 15).
that each module is configured correctly.
May 2012 Page 8
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and Tech News
Figure 15: Odometer flashes after 3 Figure 16: PROXI configuration screen
failed verification attempts
Any time an ECU is replaced, except in
When the BCM is replaced, you will notice the case of the BCM, the PROXI
diagnostic trouble code "B222C — Vehicle configuration alignment procedure (Fig.
Configuration Not Programmed" is 17) should be performed. The PROXI
immediately set. After a key cycle, the configuration is no longer in the CAN bus
BCM may also set "B2204 — ECU vehicle messaging. During the PROXI
Configuration Mismatch". At this point, configuration alignment procedure, the
"Restore BCM Proxi Configuration" is PROXI configuration information is
required. When a module, other than the copied from the BCM and written to the
BCM or powertrain control module (PCM) module that is being replaced.
is replaced you will see "B2204 — ECU
Programming Mismatch" is set after a key
cycle. If the PCM has been replaced, you
will see "P0610 — ECU Vehicle Options
Mismatch". Engine control modules
(ECU) may additionally set "P1500 —
ECU Configuration Mismatch", "B2204 —
ECU Configuration Mismatch", or "C2223
— ECU Configuration Mismatch". In any
of these cases, "PROXI Configuration
Alignment" is required.
If a BCM is replaced, remember that all Figure 17: Configure alignment procedure
BCM's will be shipped without any screen
PROXI Configuration programmed. In all
cases, you will need to restore the BCM
When a PROXI-configured module is
PROXI configuration (Fig. 16).
replaced, the technician must program
the new module using wiTECH™. The
wiTECH reads the information from the
BCM PROXI file and writes it to the new
module.
May 2012 Page 9
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and Tech News
The IPC stores a backup file of the PROXI This PROXI process allows technician's to
information. If the BCM needs to be replace the BCM, and any other module
replaced, the scan tool can move that with a generic part using wiTECH. Note
information from the IPC to the new that wiTECH is now required to replace
BCM. This is done by accessing the BCM PROXI modules.
Miscellaneous Functions Tab.
May 2012 Page 10Service Information Update Reference Book
and Tech News
SUBSYSTEMS
As we discussed in the March Master For sentry key ignition, when the key is
Tech, there are three different keys inserted in the IGNM, the RF Hub
available, the SKIM-style key, remote broadcasts a low-frequency signal. The
keyless entry (RKE) finger operated signal excites the ignition key, which
button integrated key (FOBIK), and the responds with a low-frequency return
Remote start/Keyless Enter ‘N Go™ signal that includes a secret key code and
FOBIK (Fig. 18). a transponder identification code. The
secret key and transponder codes are then
sent to the RF Hub via a dedicated
communication bus.
The RF Hub determines whether the key
codes are valid based on the information
received from the IGNM. If the ignition
key is valid, the RF Hub sends a
confirmation message to the BCM over
CAN-C. The BCM relays the
confirmation message to the PCM on
Figure 18: Three different key styles CAN-C allowing the vehicle to start. The
K-line circuit used by the IGNM is a one-
The Keyless Enter ‘N Go FOBIK operates wire, low-speed network operating in a
with a keyless ignition node (KIN)-style, manner similar to a LIN; with 0.0–1.0
push-button ignition switch. When using volts indicating a “zero” bit, and between
wiTECH, both of these devices are 6.0 volts and battery positive voltage
referred to as the ignition node module indicating a “one” bit. In addition to the
(IGNM). IGNM, a back-up circuit communicates
with the RF Hub when the ignition switch
Entry level vehicles use a non-RKE style position is changed. When the switch
ignition key with an immobilizer chip. position is changed, the back-up
Mid-level vehicles use an RKE FOBIK. communication line changes from 0.0
Vehicles using a bladed-style ignition key volts to battery voltage. When the RF
or an RKE FOBIK use a wireless ignition Hub detects the change in switch position,
node (WIN)-style rotary ignition switch the ignition switch position advances.
called the ignition node module (IGNM)
that includes a low-frequency antenna for The Keyless Enter ‘N Go FOBIK is a
SKIM code transmission. battery-operated transponder. If the
battery voltage falls below 2.2 volts, a
DTC is set. The FOBIK contains a
transponder that can also be powered by
the KIN through wireless coupling.
May 2012 Page 11Service Information Update Reference Book
and Tech News
A technician diagnosing an inoperative Because the internal antenna in the RF
FOBIK can validate a low battery Hub does not provide enough range for
condition by pressing the START button remote start functionality, an external
with the FOBIK. A valid FOBIK that is antenna is used on vehicles equipped with
programmed to that vehicle will start the remote start. The antenna attaches to the
car. A low battery will trigger a message RF Hub via a coaxial cable and is located
in the EVIC. The RF Hub module (Fig. near the RF Hub on the rear package
19) for CUSW vehicles is different than shelf (Fig. 20).
modules used on PowerNet systems. The
module communicates on the CAN-C bus.
Figure 20: External antenna
Figure 19: RF Hub The RF Hub powers five hard-wired
antennas to determine the location of the
The RF Hub transmits the ignition status FOBIK. The antennas broadcast low-
to the BCM, which controls power to the frequency signals to the FOBIK.
additional systems. The RF Hub also
monitors the capacitive door handles on The antennas are numbered one to five.
vehicles equipped with Keyless Enter ‘N 1. Left rear door (located behind the door
Go to trigger the low-frequency antennas. trim panel)
2. Right rear door (located behind the
The RF Hub also operates as the receiver door trim panel)
for the following systems: 3. Cargo area (on the inside wall of the
• Keyless entry systems trunk near the rear bumper)
• Tire pressure transponders 4. Behind the instrument panel (located
• Keyless Enter ‘N Go below the heater and air conditioning
module)
The RF Hub includes an internal antenna 5. At the rear of the vehicle (behind the
that receives the high-frequency signal bumper cover)
from the FOBIK during Keyless Enter ‘N See figure 21 on the following page.
Go or RKE operation.
May 2012 Page 12Service Information Update Reference Book
and Tech News
Figure 21: Five antennas are used to locate the FOBIK on CUSW vehicles
May 2012 Page 13Service Information Update Reference Book
and Tech News
The inside of the front exterior door Part of the UAM is an anti-tilt sensor
handles on the Dodge Dart have a surface (Fig. 24). This sensor is used for detecting
capacitance that changes when touched a tow-away condition. The UAM
(Fig. 22). The change in capacitance communicates with the BCM on a LIN
triggers a voltage change in an electronic bus.
switch circuit in the handle.
Figure 24: Anti-tilt sensor
Figure 22: Capacitive door handle
The ultrasonic transmitter, also located in
When the RF Hub detects a change in the the CHMSL (Fig. 25) sends ultrasonic
circuit, it broadcasts a FOBIK validation signals into the vehicle cabin. The
request through the low-frequency ultrasonic receiver listens to the signals
perimeter antennas. The door will unlock as they bounce off objects inside the
if the RF Hub finds a valid key in the area vehicle.
within 1.5 m (5 ft.) of the door handle.
The Dart is equipped with an ultrasonic
and anti-tilt module (UAM) located in the
headliner, ahead of the center high-
mounted stop lamp (CHMSL) assembly
(Fig. 23). The UAM works together with
an ultrasonic transmitter and receiver,
more about that in a little farther down.
Figure 25: Ultrasonic transmitter
If a person or object moves within or
enters the vehicle interior, the pattern of
the sonic waves arriving at the ultrasonic
receiver changes. If a change in sonic
wave pattern occurs, the ultrasonic
receiver sends a signal to the UAM. The
UAM sends a message over a LIN bus to
Figure 23: Ultrasonic and Anti-tilt the BCM. The BCM flashes the
Module headlamps and park/tail lamps and
sounds the horn.
May 2012 Page 14Service Information Update Reference Book
and Tech News
Customers need to be educated on the The UAM monitors the impedance of the
system. Items left in the vehicle or transmitter and receiver circuits to
hanging from the rear view mirror that determine their condition and, if the
may sway due to environmental impedance is too high or too low, it will
conditions, traffic vibrations, extreme store a DTC for any fault detected.
stereos, etc., may cause a nuisance alarm.
May 2012 Page 15Service Information Update Reference Book
and Tech News
TECH’S CORNER
In our April Master Tech program, we
featured updates on the 1.4-liter, 2.0-liter,
and 2.4-liter engines. As you know, at the
end of the web program there are a series
of quiz questions related to that month’s
content.
While reviewing your survey comments
from the April program, we noticed that
there were a few comments about one of
the quiz questions that had to do with the
1.4-liter engine’s cylinder block. There
seemed to be some confusion about which We also received requests for more
answer was correct. Let’s review the information on the 1.4-liter’s MultiAir
question, and then we’ll explain the system. In the April program we briefly
answer in more detail. introduced the MultiAir system and
explained the modes of operation.
Which of the following is NOT a However, for those of you who would like
characteristic of the 1.4-liter engine’s more in-depth training and information
cylinder block? about the MultiAir system, Chrysler
a. Two-piece design Academy does offer a one-day, instructor-
b. Cast iron bedplate led course that thoroughly covers this
c. Crankshaft supported by five main subject. The course name is MultiAir
bearings Engine Management, and the course code
d. Four piston cooling jets is 0851208. For more information about
this, and other course offerings, refer to
For this question, we were referring to the the Chrysler Academy Learning Center
aluminum bedplate when we selected the site under the Training tab at
distracter “Cast iron bedplate,” because a DealerCONNECT.
cast iron bedplate is not a characteristic
of the 1.4-liter engine’s cylinder block. As
you may recall from the program, only the
integral bearing caps are made of cast
iron. However, the bedplate, itself, is
made from aluminum. So, actually, the
cast iron bedplate was the correct choice
for this question. Sorry, if there was a
little confusion.
May 2012 Page 16Service Information Update Reference Book
and Tech News
And finally, we received some comments You can also check these requirements at
about the video not keeping up with the DealerCONNECT. Simply click on the
sound in some of the April program eSupport link at the top of the page.
segments. As we explained back in the From there you’ll find Support Tools
November 2011 Tech’s Corner article, it’s where you can check your system and
important that the computer or laptop bandwidth.
being used to view the web program is
equipped with the correct system
Thanks very much for sending us your
requirements to view the web and video
questions, comments, and concerns. We
segments. So you won’t have to go back
appreciate receiving them and look
and review the November article, we are
forward to responding to them each
reprinting them again, below, for your
month!
convenience.
The system requirements to view training
courses on TechCONNECT are:
Operating system: Windows 7
Browser: Internet Explorer 8.0 or
higher
Screen resolution: 1366 X 768
Color depth: 32 bit
Java: Sun Java 1.5.X or 1.6.X
Adobe Reader: Version 8
SVG viewer: Version 3
Flash: Version 10
May 2012 Page 17Service Information Update Reference Book
and Tech News
WARRANTY TIPS
In the past, we’ve asked for your feedback is only good for the original purchaser,
and input on all things Master Tech. This this is unlike most other warranties and
month in our Warranty Tips section we’re why we are stressing the importance of
going to answer a question from confirming the coverage. If the vehicle
L. -Cochran from the Philadelphia region. has changed hands, the warranty is no
He was looking for some info about the longer valid. There are no “in family”
five-year inspection for vehicles with the transfers available, so even if a parent
lifetime powertrain limited warranty. gives the vehicle to their child, the
Thanks for that question L. -Cochran, and coverage does not go with the vehicle.
keep them coming folks! The coverage code you are looking for on
the VIP report is 799 or 836 (799 is gas
Before we get into the inspection process I
vehicles and is the most common, 836 is
thought it’d be a good idea to go over
the hybrid vehicle). Remember, not every
what’s needed to verify coverage, or more
vehicle was eligible for this coverage, for
correctly stated, owner eligibility.
instance chassis cabs and diesels were
I can hear it already “That’s easy! Just excluded. With any other code, assume
check the VIP report.” Well, if it were there is no warranty coverage and ask the
that easy I’d be in the garage getting the service advisor to confirm the coverage
GLH ready for the track instead of before proceeding.
tapping on this keyboard. Due to the
The vehicle is not eligible for this five-
privacy laws in some states, the VIP
year inspection until 60 days prior to the
report may not be up to date with current
five-year anniversary, which is the
owner information. We’re going to cover
warranty start date. The customer also
this form by looking at the most
has 60 days after that anniversary date,
important points. If you want all the
so they really get a 120 day window.
details on this topic, you can read
There is no charge to the consumer for
Warranty Bulletin D-11-23. First, you
this inspection, but you will be paid for
need to know that the warranty coverage
performing this inspection.
code (WCC) has to be 799. If the WCC is
not 799, your claim will not be paid, this If the vehicle fails the inspection, or the
makes it worth taking a second glance. inspection is not performed within this
Next, and most important, the original prescribed period the Lifetime Powertrain
owner’s name has to match the name on Warranty is voided. The Warranty
the RO, again if this does not match, the Coverage Code for the vehicle will be
claim will not be paid. updated to show there was no inspection
or if the vehicle failed the inspection.
Since we started off with the warranty
coverage code, 799, that’s talk more about
that. In a nutshell, the lifetime warranty
May 2012 Page 18Service Information Update Reference Book
and Tech News
SERVICE INFORMATION
Recently, the warranty department has conflicting messages, both lock and unlock
noticed an issue that we want to make at the same time.
technicians aware of. The issue involves
the Keyless Enter ‘N Go system, but the
root of the problem lies with the customer
not being familiar with how the system
actually functions.
The customer complaints range from the
vehicle not unlocking when trying to open
the door, to not locking when pressing the
lock button on the door handle. Just to
clarify, the system senses when someone
is approaching the vehicle with the
FOBIK. When the operator places his/her
fingers behind the door handle to open the
door, the capacitive door handle sends a
signal to indicate a request for the door(s)
to be unlocked. The RF Hub looks for the
FOBIK, and if the correct FOBIK is
within 1.5 m (5 ft.) the doors will unlock.
The proper way to lock the car using the
door handle is to simply depress the
button.
Many door handles have been replaced in
an attempt to correct this issue. If you
receive a work order that has a customer
complaint involving the door lock/unlock
functions or the capacitive resistance
The customer needs to be aware that functionality, be sure to verify proper
there is a slight delay (typically less than operation before replacing any
1 second) before the door unlocks. This components. If you find the operation to
may appear as if the doors are not be normal, you might need to have the
unlocking. service advisor educate the customer.
Also note that this information is covered
Another common concern happens when in the owner’s information.
the door is locked using the lock button on
the handle. It appears many folks are
pressing the door lock button while also
grabbing the door handle. This sends
May 2012 Page 19Service Information Update Reference Book
and Tech News
LABOR-TIME STUDIES, BEHIND THE SCENES
This month we’re going to take a look procedure that does add up. The
behind the scenes at labor-time studies. procedure has to be completed exactly as
We get comments and questions every the service information spells out. No
month regarding labor-time standards shortcuts are allowed. This serves two
and how they are determined. This is a purposes. First, it’s fair. If shortcuts
question I asked many times during my were being taken, the times could not be
years in the dealership. I was pretty used as a standard, only a record of this
eager to find out myself, so let’s have a one technician’s ability. The other reason
look behind the curtain. is because the procedures are validated
during this process as well as timed.
The company that performs labor-time
When I was there, the procedure for
studies is completely separate from
removing the generator on the 6.4L
Chrysler Group LLC. I mention that
Charger was revised because that
because it tells me that the company
procedure (and many of the others) was
doing the time studies has nothing to gain
written based on early, or pre-production
by trimming or padding times. This
vehicles.
company has four technicians they use to
come up with these times. All four are On that note, if you feel a time is just
ASE certified, two come from a Chrysler too short to complete a procedure, feel
Group dealership, two come from free to make your voice heard. On the
independent shops. This keeps the day I was there, the removal and
familiarity with the vehicles varied and,
installation procedure for the NAG1
in my opinion, fair.
transmission from the JK Wrangler
Okay, let’s talk about how they actually was being re-studied as a direct result
come up with these times. The technician of technicians asking for it.
has a program open on his computer that
is used to time each step. The technician
has to time each step individually.
I was also surprised to see no air tools
being used. Air tools are only used to
remove tires, axle or pinion nuts, and
This means a walk from the bench to the things like that. Torque wrenches are
car, and back for each step. These little to be used on any fastener that has a
walks are on the clock, and the bench has torque specification.
to be at least 6 feet from the vehicle.
Yeah I know, not a lot, but in a 20-step
May 2012 Page 20Service Information Update Reference Book
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These procedures are performed twice, So, what did I learn from this little
usually by the same technician, but investigation? Well, I expected to find
always with at least two days between areas where the labor-time studies are
so there’s less “memory factor” coming simply unfair or at least biased
into play. against the technician. I didn’t
though. The only issue I thought I
I went into this looking to find fault
found was with broken or stripped
with the procedures for coming up
fasteners and the time it can take to
with these times. I really only found
get the car in and up in the air. These
one area that left me questioning
things (and a few more) are taken into
things, that was rusty bolts. For those
consideration. For more information
fortunate enough not to live where
on those situations, and a few more,
hundreds of tons of salt are dumped
read the Introduction section of the
on the road every winter, you have no
Labor-Time Guide released by
idea how much of a challenge rusty
Chrysler Group LLC.
fasteners can be. Well, there is an
allowance for corroded, stripped, I was glad to look into this issue, and I
broken, or missing fasteners, as well was able to because you folks asked
as repairing, as opposed to replacing for it. Please keep the comments
some components. You’ll have to talk coming, it really is what drives the
to your service manager to see if/when direction of Master Tech.
these apply.
May 2012 Page 21Service Information Update Reference Book
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Ok, you folks are good! Last month I though I had some pretty tough ones but you hit it out of the park. So, I
think this month I need to make it a bit harder.
1)
2)
May 2012 Page 22Service Information Update Reference Book
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The answer to the April puzzle:
Across Down
1. As power and stress on the 2.0-liter 2. What type of main bearings and pistons are used
Tigershark engine increases, these are needed on the 1.4-liter engine?
to cool the underside of each piston. 3. The pump on the 1.4-liter engine can run up to
4. The new Dodge Dart will be the first Chrysler ____ minutes after a hot engine shut-down.
Group vehicle to use this new brand of organic 4. Most Chrysler Group crankshaft dampers are
additive technology coolant. what type of design?
5. The turbocharger on the 1.4-liter engine is a 5. The timing system on the Dodge Dart’s 1.4-liter
____ scroll design. engine features a ____ stage belt drive system.
7. The main change on the 2.4-liter Tigershark 6. All three available engines in the Dodge Dart can
engine is it will have a new cylinder head with be mated to the C635 ____ transaxle.
a MultiAir II® ____.
8. One change to the 2.0-liter Tigershark engine is
9. On the 2.0-liter Tigershark engine, a new that its intake manifold is ____ mounted.
bearing beam is attached to #2, #3, and #4
11. The 1.4-liter engine features a ____ to improve
main bearing caps which helps reduce ____.
performance.
10. How many piston cooling jets does the 1.4-liter
12. The Clic E clamps are typically used on ____
cylinder block have?
diameter radiator hoses.
13. The knock sensor is located on the left side of
14. The ____ dual dry clutch transaxle will launch on
the ____.
the new Dodge Dart with the 1.4-liter engine.
15. What type of system provides variable control
16. The C635 manual transaxle on the Dodge Dart
of the intake valves?
has how many output shafts?
17. What type of slave cylinder does the C635
manual transaxle use to actuate the clutch?
18. To supplement the vacuum produced by the
2.0-liter Tigershark engine, what type of
vacuum pump is used?
19. This component on the 1.4-liter engine is
unique because it is made up of two pieces?
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