Pinpoint Test A: DTCs B2900 and P0630

Fire Suppression System

Pinpoint Tests

Pinpoint Test A: DTCs B2900 and P0630

Normal Operation

The Fire Suppression System Module (FSSM) monitors the communication for a police package specific vehicle ID. If an unexpected Vehicle Identification Number (VIN) or an unprogrammed VIN is detected, the FSSM stores DTC B2900 and/or P0630 in memory.

- DTC B2900 ( VIN Mismatch) - sets when the FSSM detects a VIN that is unexpected.
- DTC P0630 ( VIN Not Programmed or Incompatible - PCM) - sets when the FSSM detects an unexpected or un-programmed VIN.

This pinpoint test is intended to diagnose the following:

- PCM configuration
- Controller Area Network (CAN) communication bus
- FSSM

PINPOINT TEST A: DTCs B2900 AND P0630

NOTE: The fire suppression system must be fully operational and free of faults before releasing the vehicle to the customer.

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A1 CHECK THE CAN COMMUNICATION


- Review the recorded DTCs from the FSSM self-test.
- Is DTC U1900 present?

Yes
REFER to DTC Charts. Diagnostic Trouble Code Tests and Associated Procedures

No
GO to A2.

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A2 CHECK THE VIN


- Ignition ON.
- Access the PCM VIN.
- Does the PCM display the correct VIN?

Yes
INSTALL a new FSSM. REFER to Fire Suppression System Module (FSSM) Service and Repair. CLEAR the DTCs. REPEAT the self-test.

No
CONFIGURE the PCM with the correct VIN. REFER to Module Configuration Programming and Relearning. CLEAR the DTCs. REPEAT the self-test.

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