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.

(See DTC U0073 [MULTIPLEX COMMUNICATION SYSTEM].)

(See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM].)

No

Replace the instrument cluster and perform the programming for the immobilizer system-related parts.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [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 programming for the immobilizer system-related parts.

(See PCM REMOVAL/INSTALLATION [L3 Turbo].)

(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [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. (See DTC U0073 [MULTIPLEX COMMUNICATION SYSTEM].) (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM].)
1		No	Replace the instrument cluster and perform the programming for the immobilizer system-related parts. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.) (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [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 programming for the immobilizer system-related parts. (See PCM REMOVAL/INSTALLATION [L3 Turbo].) (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
2		No	DTC troubleshooting completed.