Chrysler RG Voyager. Manual - part 46

TEST

ACTION

APPLICABILITY

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE 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.
Disconnect the Airbag Control Module connector.
Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module
connector(s).
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION ON, TO AVOID PERSONAL INJURY OR DEATH, THEN RECONNECT
THE BATTERY.
Connect a test light to ground and the ORC Run-Start Driver circuit at the ACM
adaptor.
Turn the ignition off, wait 90 seconds, then turn the ignition on.
With the DRBIII

t, read the active FCM DTC’s.

Does the DRB show an active ORC RUN - START DRIVER OPEN code?

All

Yes

→ Go To 6

→ Replace the Airbag Control Module in accordance with Service

Instructions.
Perform __AIRBAG VERIFICATION TEST - VER 1.

Disconnect the Front Control Module.
NOTE: Check connectors - Clean and repair as necessary.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Measure the resistance of the ORC Run - Start Driver circuit between the Front
Control Module connector and the ACM Adapter.
Is the resistance below 1.0 ohms?

All

Yes

→ Replace the Front Control Module.

Perform __AIRBAG VERIFICATION TEST - VER 1.

→ Go To 7

Gain access to the connectors on the bottom of the IPM.
Disconnect the IPM C7 connector.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the ORC Run Only Driver circuit between the IPM C7
connector and the Airbag Control Module adaptor.
Is the resistance below 1.0 ohms?

All

Yes

→ Replace the IPM.

Perform __AIRBAG VERIFICATION TEST - VER 1.

→ Repair the open ORC Run - Start Driver circuit.

Perform __AIRBAG VERIFICATION TEST - VER 1.

Measure the battery voltage.
Is the voltage above 30.0 volts?

All

Yes

→ Refer to engine symptom list for the Battery Voltage Too High

symptom.
Perform __AIRBAG VERIFICATION TEST - VER 1.

→ Replace the Front Control Module.

Perform __AIRBAG VERIFICATION TEST - VER 1.

153

AIRBAG

LOSS OF IGNITION RUN - START —

Continued

TEST

ACTION

APPLICABILITY

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Disconnect the Front Control Module connector.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the ORC Run - Start Driver circuit between the Front
Control Module connector and ground.
Is the resistance below 500K ohms?

All

Yes

→ Go To 10

→ Replace the Front Control Module.

Perform __AIRBAG VERIFICATION TEST - VER 1.

Gain access to the connectors on the bottom of the IPM.
Disconnect the IPM C7 connector.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the ORC Run - Start Driver circuit between the IPM C7
connector and ground.
Is the resistance below 500K ohms?

All

Yes

→ Go To 11

→ Replace the IPM.

Perform __AIRBAG VERIFICATION TEST - VER 1.

Disconnect the Airbag Control Module connector.
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.
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module
connector.
Measure the resistance of the ORC Run - Start Driver circuit between the IPM C7
connector and ground.
Is the resistance below 500K ohms?

All

Yes

→ Repair the ORC Run - Start Driver circuit shorted to ground.

Perform __AIRBAG VERIFICATION TEST - VER 1.

→ Go To 12

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.

154

AIRBAG

LOSS OF IGNITION RUN - START —

Continued

TEST

ACTION

APPLICABILITY

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 problem found at this time. Erase all codes before returning

vehicle to customer.

155

AIRBAG

LOSS OF IGNITION RUN - START —

Continued

Symptom List:

LOSS OF IGNITION RUN ONLY
ORC RUN ONLY DRIVER OPEN
ORC RUN ONLY DRIVER OVER CURRENT
ORC RUN ONLY DRIVER OVER TEMP
ORC RUN ONLY DRIVER OVER VOLT
ORC RUN ONLY DRIVER SHORT TO GROUND

Test Note:

All symptoms listed above are diagnosed using the same tests.

The title for the tests will be LOSS OF IGNITION RUN ONLY.

When Monitored and Set Condition:

LOSS OF IGNITION RUN ONLY

When Monitored:

With the ignition in the run only position the ORC monitors the ORC

Run Only Driver circuit for proper system voltage.

Set Condition:

If the voltage on the ORC Run Only Driver circuit drops below 4.5 volts,

the code will set.

ORC RUN ONLY DRIVER OPEN

When Monitored:

When the ignition is turned OFF, the microprocessor controlled

transistor (high side driver) places a diagnostic voltage on the ORC Run Only circuit for 60
seconds. An open high side driver (HSD) circuit voltage is between 2.4 and 5.0 volts.

Set Condition:

This code will set within 10 second, if the microprocessor senses 2.4 to 5.0

volts on the HSD. Note: the diagnostic voltage will only last for 60 seconds after the
ignition is turned off.

ORC RUN ONLY DRIVER OVER CURRENT

When Monitored:

The FCM uses a microprocessor controlled transistor (high side driver)

to supply power to the ORC. The microprocessor monitors the high side driver (HSD)
internal temperature when the ignition is in the Run position.

Set Condition:

The code will set within 1 second, if the microprocessor senses high HSD

internal temperature. The high temperature is caused by over current.

ORC RUN ONLY DRIVER OVER TEMP

When Monitored:

When the ignition is turned OFF, the microprocessor controlled

transistor (high side driver) places a diagnostic voltage on the ORC Run Only circuit for 60
seconds. An open high side driver (HSD) circuit voltage is between 2.4 and 5.0 volts.

Set Condition:

This code will set within 10 second, if the microprocessor senses 2.4 to 5.0

volts on the HSD. Note: the diagnostic voltage will only last for 60 seconds after the
ignition is turned off.

156

AIRBAG

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