Pinpoint Test C: DTC B2141

Anti-Theft

Pinpoint Tests

Pinpoint Test C: DTC B2141

Normal Operation

The Transmission Control Module (TCM) and the Instrument Cluster (IC) verify correct Passive Anti-Theft System (PATS) operation through the Controller Area Network (CAN) when the key is turned to the ON position.

- DTC B2141 (NVM Configuration Failure) - sets when the IC and TCM IDs have not been sent.

This pinpoint test is intended to diagnose the following:

- IC



PINPOINT TEST C: DTC B2141

NOTE: When using the Integrated Diagnostic System (IDS), the IC and the TCM parameters are reset at the same time.

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C1 RESET THE IC AND THE TCM PARAMETERS


- Carry out the parameter reset procedure for both modules. Refer to Passive Anti-Theft System (PATS) Parameter Reset Passive Anti-Theft System (PATS).
- Cycle the ignition several times, holding the key in both positions for a minimum of 3 seconds.
- After cycling the ignition several times, does the vehicle start?

Yes
The system is OK. CHECK for any other DTCs. If any other PATS-related DTCs are present, REFER to DTC Charts.

No
GO to C2.

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C2 RETRIEVE THE IC DTCs


- Turn the key to the OFF position for a minimum of 3 seconds.
- Clear the DTCs
- Turn the key to the OFF position for a minimum of 3 seconds.
- Ignition ON.
- Retrieve the DTCs
- Is DTC B2141 retrieved?

Yes
VERIFY the TCM calibration is correct for the vehicle by matching the calibration number on
On-Line Automotive Service Information System (OASIS) with the As-Built data. If the calibration is OK, INSTALL a new IC. CARRY OUT the parameter reset procedure on both modules. REFER to Passive Anti-Theft System (PATS) Parameter Reset Passive Anti-Theft System (PATS). PROGRAM the PATS keys into the IC. REFER to Integrated Keyhead Transmitter (IKT) Key Programming Using Diagnostic Equipment Using Diagnostic Equipment. CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test. TEST the system for normal operation.

No
If there are other PATS DTCs, REFER to DTC Charts. If there are no PATS DTCs, the PATS system is OK.

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