Pinpoint Test A: DTCs B2900 And P0630

Fire Suppression System

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 continuous memory.

- DTC B2900 (VIN Mismatch) - sets when the FSSM detects a VIN that is unexpected.
- DTC P0630 (VIN Not Programmed or Incompatible - ECM/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. TEST the system for normal operation.

No
CONFIGURE the PCM with the correct VIN. REFER to Information Bus. CLEAR the DTCs. REPEAT the self-test.

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