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

id0903z7994000

Description

Possible Causes

―  Open circuit in wiring harness between relay block (IG1 relay) terminal 1B and rear vehicle monitoring control module (RH) terminal F^*1

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

―  METER IG 15A fuse damage or burn-out

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

―  Poor ground (looseness, disengagement)

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

―  Open circuit in wiring harness between relay block (IG1 relay) terminal 1B and rear vehicle monitoring control module (LH) terminal F^*1

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

―  METER IG 15A fuse damage or burn-out

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

―  Poor ground (looseness, disengagement)

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

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

Diagnostic Procedure

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 A and rear vehicle monitoring control module (LH) terminal D ―  Wiring harness between RVM warning indicator light (RH) terminal B and rear vehicle monitoring control module (LH) terminal C RVM warning indicator light (LH) related: ―  RVM warning indicator light (LH) ―  Wiring harness between RVM warning indicator light (LH) terminal A and rear vehicle monitoring control module (LH) terminal K ―  Wiring harness between RVM warning indicator light (LH) terminal B and rear vehicle monitoring control module (LH) terminal G •  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 vehicle monitoring control module (RH) terminal F. •  Is the voltage B+?	Yes	Go to the next step.
		No	Inspect the METER IG 15A fuse. If the fuse is damaged: •  Replace the METER IG 15A fuse. If the fuse is burned out: •  Inspect and repair the wiring harness between the METER IG 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 relay block (IG1 relay) terminal 1B and rear vehicle monitoring control modules (RH/LH) terminal F*1 ―  Between ignition switch terminal D 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 terminal H 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.