DTC U3003:16, U3003:17 [REAR VEHICLE MONITORING SYSTEM]

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Malfunction location

Detection condition

Possible Causes

System Wiring Diagram

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Diagnostic Procedure

Step	Inspection		Action
1	PERFORM DTC INSPECTION •  Clear DTCs using the M-MDS. (See CLEARING DTC [REAR VEHICLE MONITORING SYSTEM].) •  Perform the rear vehicle monitoring control module DTC inspection using the M-MDS. (See DTC INSPECTION [REAR VEHICLE MONITORING SYSTEM].) •  Is DTC U3003:16 or U3003:17 displayed?	Yes	Go to the next step.
		No	DTC troubleshooting completed.
2	INSPECT BATTERY VOLTAGE •  Refer to the battery inspection and inspect the battery. (See BATTERY INSPECTION [MZR-CD 2.2].) •  Is the battery normal?	Yes	Go to the next step.
		No	Replace or charge the battery. (See BATTERY REMOVAL/INSTALLATION [MZR-CD 2.2].) (See BATTERY RECHARGING [MZR-CD 2.2].) Verify that the repairs have been completed.
3	INSPECT FUSE •  Switch the ignition to off (LOCK). •  Disconnect the negative battery cable. •  Remove the METER IG 15 A fuse. •  Are the fuses normal?	Yes	Install the fuse, then go to the next step.
		No	Replace the METER IG 15 A fuse. Verify that the repairs have been completed.
4	INSPECT GENERATOR •  Start the engine. •  Measure the voltage at rear vehicle monitoring control module (RH) connector terminal F. •  Is the voltage between 9—16 V?	Yes	Inspect the generator. (See GENERATOR INSPECTION [MZR-CD 2.2].)
		No	Go to the next step.
5	INSPECT REAR VEHICLE MONITORING CONTROL MODULE GND TERMINAL FOR OPEN CIRCUIT •  Measure the voltage at rear vehicle monitoring control module (RH) connector terminal H. •  Is the voltage 0 V?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning wiring harness. Verify that the repairs have been completed.
6	MEASURE REAR VEHICLE MONITORING CONTROL MODULE INPUT VOLTAGE •  Switch the ignition to ON. •  Measure the voltage at rear vehicle monitoring control module (RH) connector terminal F. •  Is the voltage between 9—16 V?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning wiring harness. Verify that the repairs have been completed.
7	VERIFY CORRECTION COMPLETED •  Clear DTCs using the M-MDS or equivalent. (See CLEARING DTC [REAR VEHICLE MONITORING SYSTEM].) •  Perform the rear vehicle monitoring control module DTC inspection using the M-MDS. (See DTC INSPECTION [REAR VEHICLE MONITORING SYSTEM].) •  Is DTC U3003:16 or U3003:17 displayed?	Yes	Replace the rear vehicle monitoring control module (RH). (See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
		No	Go to the next step.
8	VERIFY THAT NO OTHER DTCs ARE RECORDED •  Are any other DTCs displayed?	Yes	Perform the corresponding DTC inspection.
		No	DTC troubleshooting completed.