SECURITY LIGHT 16, DTC U2510/P1260, U1147/P1260

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SECURITY LIGHT 16, DTC U2510/P1260, U1147/P1260

B3E090201077W12

SECURITY LIGHT: 16 | DTC: U2510/P1260 | Communication error between the instrument cluster and the PCM (no response)
DTC: U1147/P1260 | Communication error between the instrument cluster and the PCM (mismatched conditions)
DETECTION CONDITION | Instrument cluster DTC: U2510 • Communication error between the instrument cluster and the PCM (no response) Instrument cluster DTC: U1147 • Communication error between the instrument cluster and the PCM (mismatched conditions)
POSSIBLE CAUSE | • Malfunction in the wiring harness (CAN line) between the instrument cluster and the PCM • PCM malfunction • Instrument cluster 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

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.

2

VERIFY DTC
• Using the registered key, turn the ignition switch to the ON position.
• Is the DTC displayed?

  - Security light: 16
  - WDS or equivalent: U2510 or U1147/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.