SECURITY LIGHT 23, DTC B2139/P1260

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SECURITY LIGHT 23, DTC B2139/P1260

B3E090201077W15

SECURITY LIGHT: 23 | ID number data in the PCM and the instrument cluster do not match.
DTC: B2139/P1260
DETECTION CONDITION | • ID number data in the instrument cluster and the PCM are different.
POSSIBLE CAUSE | • Necessary procedures were not performed using the WDS or equivalent after replacing the PCM. • Instrument cluster malfunction • PCM malfunction

## Diagnostic Procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY DTC • Are either U1900 or U0073, or both, displayed, by either the instrument cluster or the PCM, or both? | Yes | Perform troubleshooting according to the corresponding DTC inspection. (See DTC U0073, U0516, U1900, U2516.)
No | Go to the next step.

2

EXAMINE INSTRUMENT CLUSTER AND PCM
• Perform procedures for when replacing the PCM only.
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)
• Using the registered key, turn the ignition switch to the ON position.
• Is the DTC displayed?

  - Security light: 23
  - WDS or equivalent: B2139/P1260

Yes

• Replace the instrument cluster and perform the resetting procedure for the immobilizer system when replacing the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)
• Go to the next step.

No | DTC troubleshooting completed.

3

VERIFY DTC
• Is the DTC displayed again?

  - Security light: 23
  - WDS or equivalent: B2139/P1260

Yes

• Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM.
(See PCM REMOVAL/INSTALLATION [ZJ, Z6].)
(See PCM REMOVAL/INSTALLATION [LF].)
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING.)

No | DTC troubleshooting completed.