Chrysler Town, Dodge Caravan. Manual - part 717

TEST

ACTION

APPLICABILITY

Ensure the battery is fully charged.
Turn the ignition on.
NOTE: For the purpose of this test, the AECM and ORC modules will be
referred to as an ACM.
SELECT ONE:

All

ACM - ACTIVE DTC

ACM - STORED DTC

FCM - ACTIVE DTC

FCM - STORED DTC

NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.

With the DRBIII

t, read the active FCM DTCs.

Are there any active ORC RUN ONLY DRIVER codes?

All

Yes

→ Go To 3

→ WARNING: TURN THE IGNITION OFF, DISCONNECT THE

BATTERY AND WAIT TWO MINUTES BEFORE PROCEED-
ING. Replace the Airbag Control Module in accordance with
Service Instructions.
Perform AIRBAG VERIFICATION TEST - VER 1.

Select the active FCM RUN ONLY DTC displayed on the DRB.

All

1. ORC RUN ONLY DRIVER OPEN

Go To

2. ORC RUN ONLY DRIVER OVER VOLTAGE

Go To

3. ORC RUN-START SHORT TO GROUND

Go To

4. ORC RUN ONLY DRIVER OVER CURRENT

Go To

5. ORC RUN ONLY DRIVER OVER TEMP

Go To

104

AIRBAG

LOSS OF IGNITION RUN ONLY —

Continued

TEST

ACTION

APPLICABILITY

WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE OCCUPANT RESTRAINT CONTROLLER IS DROPPED
AT ANY TIME, IT MUST BE REPLACED.
Disconnect the Airbag Control Module connector(s).
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool Adaptor to the Airbag Control Module connector.
Connect a test light to ground and the ORC Run Only Driver circuit at the Airbag
Control Module connector.
WARNING: TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.
Turn the ignition off, wait 90 seconds and then turn the ignition ON.
With the DRBIII

t, read the active FCM DTCs.

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

All

Yes

→ Go To 5

→ WARNING: MAKE SURE THE BATTERY IS DISCONNECTED,

THEN WAIT TWO MINUTES BEFORE PROCEEDING. Replace
the Airbag Control Module in accordance with Service Instruc-
tions.
Perform AIRBAG VERIFICATION TEST - VER 1.

WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
Disconnect the Front Control Module.
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 the Airbag Control Module adapter.
Is the resistance below 1.0 ohms?

All

Yes

→ Replace the Front Control Module.

Perform AIRBAG VERIFICATION TEST - VER 1.

→ Go To 6

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 adapter.
Is the resistance below 1.0 ohms?

All

Yes

→ Replace the IPM.

Perform AIRBAG VERIFICATION TEST - VER 1.

→ Repair the open ORC Run Only Driver circuit.

Perform AIRBAG VERIFICATION TEST - VER 1.

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

All

Yes

→ Refer to Charging Category for the P1594 Charging System Too

High symptom.
Perform AIRBAG VERIFICATION TEST - VER 1.

→ Replace the Front Control Module.

Perform AIRBAG VERIFICATION TEST - VER 1.

105

AIRBAG

LOSS OF IGNITION RUN ONLY —

Continued

TEST

ACTION

APPLICABILITY

Disconnect the Front Control Module.
Measure the resistance of the ORC Run Only Driver circuit between the Front
Control Module connector and ground.
Is the resistance below 500K ohms?

All

Yes

→ Go To 9

→ Replace the Front Control Module.

Perform AIRBAG VERIFICATION TEST - VER 1.

All

Yes

→ Go To 10

→ Replace the IPM.

Perform AIRBAG VERIFICATION TEST - VER 1.

Disconnect the Airbag Control Module connector(s).
WARNING: IF THE OCCUPANT RESTRAINT CONTROLLER IS DROPPED
AT ANY TIME, IT MUST BE REPLACED.
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool Adaptor to the Airbag Control Module connector.
Measure the resistance of the ORC Run Only Driver circuit between the IPM C7
connector and ground.
Is the resistance below 500K ohms?

All

Yes

→ WARNING: MAKE SURE THE BATTERY IS DISCONNECTED,

THEN WAIT TWO MINUTES BEFORE PROCEEDING. Replace
the Airbag Control Module in accordance with Service Instruc-
tions.
Perform AIRBAG VERIFICATION TEST - VER 1.

→ Repair the ORC Run Only Driver circuit shorted to ground.

Perform AIRBAG VERIFICATION TEST - VER 1.

106

AIRBAG

LOSS OF IGNITION RUN ONLY —

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: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE 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: TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.
With the DRBIII

t monitor active codes as you work through the following steps.

WARNING: 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 circuits, rotate the steering wheel from stop to stop.
You have just attempted to simulate the condition that initially set the trouble code
message.
Did the DTC become active?

All

Yes

→ Select appropriate symptom from Symptom List.

→ No problem found at this time. Erase all codes before returning

vehicle to customer.

107

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Continued

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