SECURITY LIGHT: 22, DTC: B2141/P1260/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

id0902e5002500

SECURITY LIGHT: 22

Communication error between the instrument cluster and the PCM (data transfer error)

DTC: B1241/P1260/P1260:00

DETECTION CONDITION

Communication error between the instrument cluster and the PCM (data transfer error)

POSSIBLE CAUSE

•  Malfunction in the wiring harness (CAN line) between the instrument cluster and the PCM

•  Instrument cluster malfunction

•  PCM 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

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: 22

―  M-MDS: B2141/P1260/P1260:00

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].)

Go to the next step.

No

DTC troubleshooting completed.

3

EXAMINE INSTRUMENT CLUSTER AND PCM

•  Is the DTC displayed again?

―  Security light: 22

―  M-MDS: B2141/P1260/P1260:00

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 [KEYLESS ENTRY SYSTEM].)

No

DTC troubleshooting completed.

SECURITY LIGHT: 22	Communication error between the instrument cluster and the PCM (data transfer error)
DTC: B1241/P1260/P1260:00
DETECTION CONDITION	Communication error between the instrument cluster and the PCM (data transfer error)
POSSIBLE CAUSE	• Malfunction in the wiring harness (CAN line) between the instrument cluster and the PCM • Instrument cluster malfunction • PCM 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	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: 22 ― M-MDS: B2141/P1260/P1260:00	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].) Go to the next step.
2		No	DTC troubleshooting completed.
3	EXAMINE INSTRUMENT CLUSTER AND PCM • Is the DTC displayed again? ― Security light: 22 ― M-MDS: B2141/P1260/P1260:00	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 [KEYLESS ENTRY SYSTEM].)
3		No	DTC troubleshooting completed.