Diagnostic Procedure
CALIBRATION MISMATCH - DIAGNOSTIC PROCEDURE
| 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. SELECT ACTIVE or STORED DTC:
NOTE:
When reconnecting Airbag system components, the ignition must be turned off and the battery must be disconnected.
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| 2 | Turn the ignition on.
NOTE:
Ensure the battery is fully charged. Connect the DRBIII® to the data link connector and select PASSIVE RESTRAINTS, AIRBAG, SYSTEM TEST. With the DRBIII®, read the system test. Does the DRBIII® show PCM Active on the Bus:?
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| 3 | With the DRBIII®, select ENGINE MISCELLANEOUS, select MISC FUNCTION, and then CHECK VIN to read the Vehicle Identification Number in the Powertrain Control Module. Compare the VIN displayed on the DRBIII® screen and the Vehicle VIN plate. Does the VIN plate and the PCM VIN match?
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| 4 |
WARNING:
TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING. If there are no possible causes remaining, view repair.
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| 5 | With the DRBIII®, 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® 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?
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