Chrysler RG Voyager. Manual — part 53
TEST
ACTION
APPLICABILITY
12
Turn the ignition off.
Disconnect the PCM/ECM harness connector. Note: If equipped with NGC follow the
caution below.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Disconnect the DRB from the Data Link Connector (DLC).
Disconnect the negative battery cable.
Measure the resistance of the PCI Bus circuit between the Data Link Connector
(DLC) and the PCM/ECM harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 13
No
→ Repair the PCI Bus circuit for an open. Note: DO not repair the
OCS wiring. If OCS wiring problem is present, install or replace
the OCS Service Repair Kit. Then perform the Verification
Required test to remove DTC created by the repair.
Perform __AIRBAG VERIFICATION TEST - VER 1.
13
NOTE: Reconnect the PCM/ECM harness connector and the negative bat-
tery cable.
Turn the ignition on.
Measure the voltage of the PCI Bus circuit at the Data Link Connector (DLC).
Is the voltage above 7.0 volts?
All
Yes
→ Go To 14
No
→ Test Complete.
14
Turn the ignition off.
Using a voltmeter, connect one end to the PCI Bus circuit at the DLC, and the other
end to ground.
Note: When performing the next step turn the ignition off (wait one minute)
before disconnecting any module. When the module is disconnected turn
the ignition on to check for a short to voltage.
Turn the ignition on.
While monitoring the voltmeter, disconnect each module the vehicle is equipped with
one at a time.
Is the voltage steadily above 7.0 volts with all the modules disconnected?
All
Yes
→ Repair the PCI Bus circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the module that when disconnected the short to voltage
was eliminated.
Perform BODY VERIFICATION TEST - VER 1.
181
AIRBAG
NO PCI LOOPBACK —
Continued
Symptom:
NO PCI TRANSMISSION
When Monitored and Set Condition:
NO PCI TRANSMISSION
When Monitored:
With the ignition on and the module transmitting information on the
BUS.
Set Condition:
The code will set immediately if the onboard diagnostic cannot detect the
module transmitting information on the BUS. NOTE: Any Bus Failure will may cause a
stored code to set.
POSSIBLE CAUSES
AIRBAG CONTROL MODULE - ACM
STORED CODE OR INTERMITTENT CONDITION
ACTIVE CODE PRESENT
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
NOTE: Ensure the battery is fully charged.
NOTE: For the purpose of this test, the AECM and ORC modules will be
referred to as an ACM.
From the list below, select the appropriate module and DTC type for the this
diagnostic trouble code.
DETERMINE ACTIVE OR STORED DTC
All
ACM - ACTIVE
ACM - STORED
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
2
WARNING: TO AVOID PERSONAL INJURY OR DEATH, DISCONNECT THE
BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY
TIME, IT MUST BE REPLACED. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND PERSONAL INJURY OR DEATH.
If there are no possible causes remaining, view repair.
All
Repair
Replace the Airbag Control Module in accordance with Service
Instructions.
Perform __AIRBAG VERIFICATION TEST - VER 1.
182
AIRBAG
TEST
ACTION
APPLICABILITY
3
With the DRBIII
t, record and erase all DTC’s from all Airbag modules.
If equipped with Passenger Airbag On - Off switch, read the DTC’s in all switch
positions.
If any ACTIVE codes are present they must be resolved before diagnosing any stored
codes.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Look for chaffed, pierced, pinched, or partially broken wires and broken, bent, pushed
out, spread, corroded, or contaminated terminals.
The following additional checks may assist you in identifying a possible intermittent
problem.
Reconnect any disconnected components and harness connector.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION ON, THEN RECONNECT THE BATTERY.
With the DRBIII
t monitor active codes as you work through the following steps.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, MAINTAIN A SAFE
DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING
STEPS.
Wiggle the wiring harness and connectors of the related airbag circuit or component.
If codes are related to the Driver Airbag circuits, rotate the steering wheel from stop
to stop.
IF only stored codes return continue the test until the problem area has been isolated
In the previous steps you have attempted to recreate the conditions responsible for
setting active DTC in question.
Are any ACTIVE DTCs present?
All
Yes
→ Select appropriate symptom from Symptom List.
No
→ No problem found at this time. Erase all codes before returning
vehicle to customer.
183
AIRBAG
NO PCI TRANSMISSION —
Continued
Symptom List:
NO RIGHT FRONT IMPACT SENSOR COMMUNICATION
RIGHT FRONT IMPACT SENSOR INTERNAL 1
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be NO RIGHT FRONT IMPACT
SENSOR COMMUNICATION.
When Monitored and Set Condition:
NO RIGHT FRONT IMPACT SENSOR COMMUNICATION
When Monitored:
The ACM continuously communicates with the Right Front Impact
Sensor over the sensor signal circuit. The sensor communication and onboard diagnostics
are powered by the ACM signal.
Set Condition:
The code will set, if the ACM and Right Front Sensor do not establish and
maintain valid data communications.
RIGHT FRONT IMPACT SENSOR INTERNAL 1
When Monitored:
The Right Front Impact sensors is equipped with onboard diagnostics
to monitor the sensors internal circuits. If a problem is identified the sensor sends the
Right Front Impact sensor internal 1 message to the ACM.
Set Condition:
The code will set if the ACM receives an internal 1 message from the Right
Front Impact Sensor.
POSSIBLE CAUSES
SIGNAL CIRCUIT SHORTED TO BATTERY
SIGNAL CIRCUIT SHORT TO GROUND
RIGHT FRONT SENSOR 1 CIRCUITS SHORTED TOGETHER
GROUND CIRCUIT OPEN
SIGNAL CIRCUIT OPEN
ACM, PASSENGER SIDE IMPACT SENSOR
REPAIR IS COMPLETE
STORED CODE OR INTERMITTENT CONDITION
ACTIVE CODE PRESENT
184
AIRBAG
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