No.1 RVM INDICATOR LIGHT (GREEN)/RVM WARNING INDICATOR LIGHT DOES NOT ILLUMINATE WHEN IGNITION IS SWITCHED ON [REAR VEHICLE MONITORING SYSTEM]

1	RVM indicator light (green)/RVM warning indicator light does not illuminate when ignition is switched on
DESCRIPTION	• RVM indicator light (green) does not illuminate when ignition is switched ON. • RVM warning indicator light does not illuminate when ignition is switched ON. • No communication with the M-MDS (diagnostic tester).
POSSIBLE CAUSES	• Rear vehicle monitoring control module (RH) does not initiate. ― Open circuit in wiring harness between IG relay and rear vehicle monitoring control module (RH) terminal F^1 (through short code terminal H) ― Open circuit in wiring harness between ignition switch and rear vehicle monitoring control module (RH) terminal F^2 (through short code terminal H) ― METER fuse damage or burn-out ― Open circuit in wiring harness between rear vehicle monitoring control module (RH) terminal H and ground (through short code terminal F) ― Poor ground (looseness, disengagement) ― Rear vehicle monitoring control module (RH) malfunction (internal malfunction) • Rear vehicle monitoring control module (LH) does not initiate. (DTC U0028:87 is output) ― Open circuit in wiring harness between IG relay and rear vehicle monitoring control module (LH) terminal F^1 (through short code terminal H) ― Open circuit in wiring harness between ignition switch and rear vehicle monitoring control module (LH) terminal F^2 (through short code terminal H) ― METER 15A fuse damage or burn-out ― Open circuit in wiring harness between rear vehicle monitoring control module (LH) terminal H and ground (through short code terminal F) ― Poor ground (looseness, disengagement) ― Rear vehicle monitoring control module (LH) malfunction (internal malfunction) • Communication error between rear vehicle monitoring control modules. (RH and LH) (DTC 0028:87 is output) • Instrument cluster does not receive RVM indicator light (green) illumination request signal from rear vehicle monitoring control module (RH). ― Communication error between rear vehicle monitoring control module (RH) and instrument cluster ― Rear vehicle monitoring control module (RH) internal malfunction (illumination request signal is not output) ― Instrument cluster internal malfunction (illumination request signal is not received) • RVM warning indicator light illumination circuit disabled. ― RVM warning indicator light malfunction ― Open or short circuit in wiring harness between rear vehicle monitoring control module (LH) and RVM warning indicator light ― Rear vehicle monitoring control module (LH) internal malfunction (RVM warning indicator light illumination circuit disabled) • Instrument cluster does not illuminate RVM indicator light (green). ― Instrument cluster internal malfunction (RVM indicator light (green) illumination circuit disabled)

RVM indicator light (green)/RVM warning indicator light does not illuminate when ignition is switched on

DESCRIPTION

• RVM indicator light (green) does not illuminate when ignition is switched ON.

• RVM warning indicator light does not illuminate when ignition is switched ON.

• No communication with the M-MDS (diagnostic tester).

POSSIBLE CAUSES

• Rear vehicle monitoring control module (RH) does not initiate.

― Open circuit in wiring harness between IG relay and rear vehicle monitoring control module (RH) terminal F^*1 (through short code terminal H)

― Open circuit in wiring harness between ignition switch and rear vehicle monitoring control module (RH) terminal F^*2 (through short code terminal H)

― METER fuse damage or burn-out

― Open circuit in wiring harness between rear vehicle monitoring control module (RH) terminal H and ground (through short code terminal F)

― Poor ground (looseness, disengagement)

― Rear vehicle monitoring control module (RH) malfunction (internal malfunction)

• Rear vehicle monitoring control module (LH) does not initiate. (DTC U0028:87 is output)

― Open circuit in wiring harness between IG relay and rear vehicle monitoring control module (LH) terminal F^*1 (through short code terminal H)

― Open circuit in wiring harness between ignition switch and rear vehicle monitoring control module (LH) terminal F^*2 (through short code terminal H)

― METER 15A fuse damage or burn-out

― Open circuit in wiring harness between rear vehicle monitoring control module (LH) terminal H and ground (through short code terminal F)

― Poor ground (looseness, disengagement)

― Rear vehicle monitoring control module (LH) malfunction (internal malfunction)

• Communication error between rear vehicle monitoring control modules. (RH and LH) (DTC 0028:87 is output)

• Instrument cluster does not receive RVM indicator light (green) illumination request signal from rear vehicle monitoring control module (RH).

― Communication error between rear vehicle monitoring control module (RH) and instrument cluster

― Rear vehicle monitoring control module (RH) internal malfunction (illumination request signal is not output)

― Instrument cluster internal malfunction (illumination request signal is not received)

• RVM warning indicator light illumination circuit disabled.

― RVM warning indicator light malfunction

― Open or short circuit in wiring harness between rear vehicle monitoring control module (LH) and RVM warning indicator light

― Rear vehicle monitoring control module (LH) internal malfunction (RVM warning indicator light illumination circuit disabled)

• Instrument cluster does not illuminate RVM indicator light (green).

― Instrument cluster internal malfunction (RVM indicator light (green) illumination circuit disabled)

Step	Inspection	Action
1	VERIFY DTCs • Retrieve DTCs from the rear vehicle monitoring system and instrument cluster using the M-MDS. (See DTC INSPECTION [REAR VEHICLE MONITORING SYSTEM].) (See DTC INSPECTION [INSTRUMENT CLUSTER].) • Are any DTCs displayed?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [REAR VEHICLE MONITORING SYSTEM].) (See DTC TABLE [INSTRUMENT CLUSTER].)
No	Go to the next step. If a communication error occurs when retrieving the rear vehicle monitoring system DTCs, go to Step 5.
2	DETERMINE IF MALFUNCTION CAUSE IS RVM INDICATOR LIGHT (GREEN) OR RVM WARNING INDICATOR LIGHT ILLUMINATION CIRCUIT • Switch the ignition to ON. • Inspect RVM indicator light (green) condition. • Does the RVM indicator light (green) illuminate?	Yes	Go to Step 4.
No	Go to the next step.
3	DETERMINE IF MALFUNCTION CAUSE IS REAR VEHICLE MONITORING CONTROL MODULE OR INSTRUMENT CLUSTER RELATED • Illuminate all the indicator lights and warning lights in the instrument cluster using the simulation function WL+IL of the M-MDS instrument cluster. (See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].) • Does the RVM indicator light (green) illuminate?	Yes	Replace the rear vehicle monitoring control module (RH). (See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
4^*	DETERMINE IF MALFUNCTION CAUSE IS REAR VEHICLE MONITORING CONTROL MODULE OR RVM WARNING INDICATOR LIGHT RELATED • Inspect the following: RVM warning indicator light (RH) related: ― RVM warning indicator light (RH) ― Wiring harness between RVM warning indicator light (RH) terminal B and rear vehicle monitoring control module (LH) short code terminal J ― Wiring harness between RVM warning indicator light (RH) terminal D and rear vehicle monitoring control module (LH) short code terminal I RVM warning indicator light (LH) related: ― RVM warning indicator light (LH) ― Wiring harness between RVM warning indicator light (LH) terminal B and rear vehicle monitoring control module (LH) short code terminal A ― Wiring harness between RVM warning indicator light (LH) terminal D and rear vehicle monitoring control module (LH) short code terminal E • Is a malfunction detected?	Yes	Repair or replace the malfunctioning part.
No	Replace the rear vehicle monitoring control module (LH). (See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
5^*	INSPECT REAR VEHICLE MONITORING CONTROL MODULE (RH) POWER SUPPLY SYSTEM • Switch the ignition to ON. • Measure the voltage at rear wiring harness connector terminal F (for inspect rear vehicle monitoring control module (RH) terminal H voltage). (See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.) • Is the voltage B+?	Yes	Go to the next step.
No	Inspect the METER 15A fuse. If the fuse is damaged: • Replace the METER 15A fuse. If the fuse is burned out: • Inspect and repair the wiring harness between the METER 15A fuse and rear vehicle monitoring control modules (RH/LH) terminal F for a short circuit to the ground system. If the fuse is not damaged or burned out: • Inspect and repair the following wiring harness for an open circuit: ― Between IG relay terminal 1B (IG1 relay) and rear vehicle monitoring control modules (RH/LH) terminal F^1 ― Between ignition switch terminal A and rear vehicle monitoring control modules (RH/LH) terminal F^2
6^*	INSPECT REAR VEHICLE MONITORING CONTROL MODULE (RH) GROUND SYSTEM • Switch the ignition to off (LOCK). • Disconnect the rear vehicle monitoring control module (RH) connector. • Verify the continuity between the rear vehicle monitoring control module (RH) vehicle wiring harness-side connector short code terminal F and ground. • Is there continuity?	Yes	Replace the rear vehicle monitoring control module (RH). (See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
No	Inspect and repair the ground point for looseness, disengagement, lifting. Inspect and repair the wiring harness for an open circuit.

Step

Inspection

Action

VERIFY DTCs

• Retrieve DTCs from the rear vehicle monitoring system and instrument cluster using the M-MDS.

(See DTC INSPECTION [REAR VEHICLE MONITORING SYSTEM].)

(See DTC INSPECTION [INSTRUMENT CLUSTER].)

• Are any DTCs displayed?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [REAR VEHICLE MONITORING SYSTEM].)

(See DTC TABLE [INSTRUMENT CLUSTER].)

Go to the next step.

If a communication error occurs when retrieving the rear vehicle monitoring system DTCs, go to Step 5.

DETERMINE IF MALFUNCTION CAUSE IS RVM INDICATOR LIGHT (GREEN) OR RVM WARNING INDICATOR LIGHT ILLUMINATION CIRCUIT

• Switch the ignition to ON.

• Inspect RVM indicator light (green) condition.

• Does the RVM indicator light (green) illuminate?

Yes

Go to Step 4.

Go to the next step.

DETERMINE IF MALFUNCTION CAUSE IS REAR VEHICLE MONITORING CONTROL MODULE OR INSTRUMENT CLUSTER RELATED

• Illuminate all the indicator lights and warning lights in the instrument cluster using the simulation function WL+IL of the M-MDS instrument cluster.

(See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].)

• Does the RVM indicator light (green) illuminate?

Yes

Replace the rear vehicle monitoring control module (RH).

(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)

Replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

4^*

DETERMINE IF MALFUNCTION CAUSE IS REAR VEHICLE MONITORING CONTROL MODULE OR RVM WARNING INDICATOR LIGHT RELATED

• Inspect the following:

RVM warning indicator light (RH) related:

― RVM warning indicator light (RH)

― Wiring harness between RVM warning indicator light (RH) terminal B and rear vehicle monitoring control module (LH) short code terminal J

― Wiring harness between RVM warning indicator light (RH) terminal D and rear vehicle monitoring control module (LH) short code terminal I

RVM warning indicator light (LH) related:

― RVM warning indicator light (LH)

― Wiring harness between RVM warning indicator light (LH) terminal B and rear vehicle monitoring control module (LH) short code terminal A

― Wiring harness between RVM warning indicator light (LH) terminal D and rear vehicle monitoring control module (LH) short code terminal E

• Is a malfunction detected?

Yes

Repair or replace the malfunctioning part.

Replace the rear vehicle monitoring control module (LH).

(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)

5^*

INSPECT REAR VEHICLE MONITORING CONTROL MODULE (RH) POWER SUPPLY SYSTEM

• Switch the ignition to ON.

• Measure the voltage at rear wiring harness connector terminal F (for inspect rear vehicle monitoring control module (RH) terminal H voltage).

(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)

• Is the voltage B+?

Yes

Go to the next step.

Inspect the METER 15A fuse.

If the fuse is damaged:

• Replace the METER 15A fuse.

If the fuse is burned out:

• Inspect and repair the wiring harness between the METER 15A fuse and rear vehicle monitoring control modules (RH/LH) terminal F for a short circuit to the ground system.

If the fuse is not damaged or burned out:

• Inspect and repair the following wiring harness for an open circuit:

― Between IG relay terminal 1B (IG1 relay) and rear vehicle monitoring control modules (RH/LH) terminal F^*1

― Between ignition switch terminal A and rear vehicle monitoring control modules (RH/LH) terminal F^*2

6^*

INSPECT REAR VEHICLE MONITORING CONTROL MODULE (RH) GROUND SYSTEM

• Switch the ignition to off (LOCK).

• Disconnect the rear vehicle monitoring control module (RH) connector.

• Verify the continuity between the rear vehicle monitoring control module (RH) vehicle wiring harness-side connector short code terminal F and ground.

• Is there continuity?

Yes

Replace the rear vehicle monitoring control module (RH).

(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)

Inspect and repair the ground point for looseness, disengagement, lifting.

Inspect and repair the wiring harness for an open circuit.