REAR VEHICLE MONITORING CONTROL MODULE INSPECTION

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1.  Disconnect the negative battery cable.

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

2.  Remove the rear combination light. (See REAR COMBINATION LIGHT REMOVAL/INSTALLATION.)

3.  Remove the rear bumper. (See REAR BUMPER REMOVAL/INSTALLATION.)

4.  Connect the negative battery cable.

5.  Measure the voltage at each terminal is as indicated in the Terminal Voltage Tables.

•   If the voltage or continuity is not as specified in the Terminal Voltage Table, inspect the parts under “Inspection item (s)”.

―  If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, replace the rear vehicle monitoring control module.

Terminal Voltage Table (Reference)

Rear vehicle monitoring control module (RH)

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Terminal	Signal	Connected to	Measurement condition		Voltage (V)	Inspection item(s)
A	CAN2_L	Rear vehicle monitoring CM (LH)	Terminal used for communication therefore determination based on terminal voltage is not possible.
C	CAN2_H	Rear vehicle monitoring CM (LH)	Terminal used for communication therefore determination based on terminal voltage is not possible.
D	RVM switch signal	RVM switch	Switch the ignition to ON	RVM switch pressed	1.0 or less	•  RVM switch •  Related wiring harness
				RVM switch not pressed	+B
F	Power supply	METER 15 A fuse	Switch the ignition to ON		+B	•  METER 15 A fuse •  Related wiring harness
			Switch the ignition to off		1.0 or less
H	Ground	Body ground	Under any condition		1.0 or less	•  Related wiring harness
I	CAN_L	CAN system related module	Terminal used for communication therefore determination based on terminal voltage is not possible.
L	CAN_H	CAN system related module	Terminal used for communication therefore determination based on terminal voltage is not possible.

Terminal Voltage Table (Reference)

Rear vehicle monitoring control module (LH)

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Terminal	Signal	Connected to	Measurement condition		Voltage (V)	Inspection item(s)
C	RVM warning indicator light ground signal (RH)	RVM warning indicator light (RH)	Under any condition		1.0 or less	•  RVM warning indicator light LED (RH) •  Related wiring harness
D	RVM warning indicator light signal (RH)	RVM warning indicator light (RH)	Switch the ignition to ON	LED off	1.0 or less	•  RVM warning indicator light LED (RH) •  Related wiring harness
				LED on	3.0—5.0
F	Power supply	METER 15 A fuse	Switch the ignition to ON		+B	•  METER 15 A fuse •  Related wiring harness
			Switch the ignition to off		1.0 or less
G	RVM warning indicator light ground signal (LH)	RVM warning indicator light (LH)	Under any condition		1.0 or less	•  RVM warning indicator light LED (LH) •  Related wiring harness
H	Ground	Body ground	Under any condition		1.0 or less	•  Related wiring harness
I	CAN2_L	Rear vehicle monitoring CM (RH)	Terminal used for communication therefore determination based on terminal voltage is not possible.
K	RVM warning indicator light signal (LH)	RVM warning indicator light (LH)	Switch the ignition to ON	LED off	1.0 or less	•  RVM warning indicator light (LH) •  Related wiring harness
				LED on	3.0—5.0
L	CAN2_H	Rear vehicle monitoring CM (RH)	Terminal used for communication therefore determination based on terminal voltage is not possible.