DTC P1260

Immobilizer system problem

DETECTION CONDITION

• The instrument cluster detects an immobilizer system malfunction.

Diagnostic support note

• This is a continuous monitor (Other).

• The MIL does not illuminate.

• PENDING CODE is available if the PCM detects the above malfunction condition.

• FREEZE FRAME DATA is not available.

• The DTC is stored in the PCM memory.

POSSIBLE CAUSE

• Immobilizer system malfunction

• PCM malfunction

STEP

INSPECTION

ACTION

1

• Verify related Service Bulletins and/or on-line repair information availability.

• Is any related repair information available?

Yes

Perform repair or diagnosis according to the available repair information.

• If the vehicle is not repaired, go to the next step.

No

Go to the next step.

2

• Turn the ignition switch to the ON position (Engine off).

• Verify stored DTCs in instrument cluster.

  (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS SYSTEM)].)

  (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

• Are DTCs stored?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS SYSTEM)].)

(See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

No

Go to the next step.

3

• Make sure to reconnect all disconnected connectors.

• Clear the DTC from the PCM memory using the M-MDS.

• Start the engine, or perform the KOEO self-test with M-MDS.

  (See KOEO/KOER SELF TEST [LF].)

• Is the same DTC present?

Yes

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [LF].)

No

Go to the next step.

4

• Perform the “AFTER REPAIR PROCEDURE”.

  (See AFTER REPAIR PROCEDURE [LF].)

• Is any DTC present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [LF].)

No

DTC troubleshooting completed.