SECURITY LIGHT: 16, DTC: U0100:87/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]

id0902e5356800

DTC

Security light flashing pattern

16

Communication error to PCM (No response)

M-MDS display

Instrument cluster

U0100:87

PCM

P1260:00

DETECTION CONDITION

•  Communication error between instrument cluster and PCM (No response).

POSSIBLE CAUSE

•  Wiring harness between instrument cluster and PCM malfunction (CAN line)

•  Instrument cluster malfunction

•  PCM malfunction

DTC	Security light flashing pattern	16	Communication error to PCM (No response)
DETECTION CONDITION	• Communication error between instrument cluster and PCM (No response).
POSSIBLE CAUSE	• Wiring harness between instrument cluster and PCM malfunction (CAN line) • Instrument cluster malfunction • PCM malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION

1

VERIFY DTCs

•  Clear the DTC from the instrument cluster using the M-MDS.
(See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Verify the immobilizer system DTC using the M-MDS.
(See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Is the following DTC present?

―  U0001:88

Yes

Go to the applicable DTC inspection.

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI))].)

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI))].)

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR 2.0 DISI))].)

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 2.0 DISI))].)

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR-CD 2.2))].)

(See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR-CD 2.2))].)

No

Go to the next step.

2

VERIFY INSTRUMENT CLUSTER MALFUNCTION

•  Clear the DTC from the instrument cluster using the M-MDS.
(See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Verify the immobilizer system DTC using the M-MDS.
(See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Is the following DTC present?

―  Instrument cluster: U0100:87

―  PCM: P1260:00

Yes

Replace the instrument cluster and program the immobilizer system-related parts.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)

Go to the next step.

No

Go to Step 4.

3

VERIFY TROUBLESHOOTING COMPLETED

•  Clear the DTC from the instrument cluster using the M-MDS.
(See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Verify the immobilizer system DTC using the M-MDS.
(See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

•  Is the following DTC present?

―  Instrument cluster: U0100:87

―  PCM: P1260:00

Yes

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].)

(See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI].)

(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)

No

Go to the next step.

4

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

No

DTC troubleshooting completed.

DTC	Security light flashing pattern		16	Communication error to PCM (No response)
	M-MDS display	Instrument cluster	U0100:87
	M-MDS display	PCM	P1260:00
DETECTION CONDITION				• Communication error between instrument cluster and PCM (No response).
POSSIBLE CAUSE				• Wiring harness between instrument cluster and PCM malfunction (CAN line) • Instrument cluster malfunction • PCM malfunction

STEP	INSPECTION		ACTION
1	VERIFY DTCs • Clear the DTC from the instrument cluster using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Verify the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Is the following DTC present? ― U0001:88	Yes	Go to the applicable DTC inspection. (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI))].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI))].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR 2.0 DISI))].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 2.0 DISI))].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR-CD 2.2))].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR-CD 2.2))].)
1		No	Go to the next step.
2	VERIFY INSTRUMENT CLUSTER MALFUNCTION • Clear the DTC from the instrument cluster using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Verify the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Is the following DTC present? ― Instrument cluster: U0100:87 ― PCM: P1260:00	Yes	Replace the instrument cluster and program 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		No	Go to Step 4.
3	VERIFY TROUBLESHOOTING COMPLETED • Clear the DTC from the instrument cluster using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Verify the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) • Is the following DTC present? ― Instrument cluster: U0100:87 ― PCM: P1260:00	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].) (See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI].) (See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
3		No	Go to the next step.
4	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)
4		No	DTC troubleshooting completed.