SECURITY LIGHT 16, DTC U2510/P1260 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

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SECURITY LIGHT: 16

DTC: U2510/P1260

Communication error between the instrument cluster and the PCM (no response)

DETECTION CONDITION

Communication error between the instrument cluster and the PCM (no response)

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 U0100 or U0073, or both, displayed by the instrument cluster?

Yes

Perform troubleshooting according to the corresponding DTC inspection.

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 [KEYLESS ENTRY SYSTEM].)

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

―  M-MDS: U2510/P1260

Yes

Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM.

(See PCM REMOVAL/INSTALLATION [MZI-3.7].)

(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [KEYLESS ENTRY SYSTEM].)

No

DTC troubleshooting completed.

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

STEP	INSPECTION		ACTION
1	VERIFY DTC • Are either U0100 or U0073, or both, displayed by the instrument cluster?	Yes	Perform troubleshooting according to the corresponding DTC inspection.
1		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 [KEYLESS ENTRY SYSTEM].) 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 ― M-MDS: U2510/P1260	Yes	Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [KEYLESS ENTRY SYSTEM].)
2		No	DTC troubleshooting completed.