DTC U3003:16 [REAR VEHICLE MONITORING SYSTEM]

id0902z2888800


Rear Vehicle Monitoring Control Module Connector 10-pin Type

System malfunction location

Rear vehicle monitoring control module (RH) low power supply voltage input
Detection condition
•  Power supply circuit voltage of 9 V or less is detected in rear vehicle monitoring control module (RH) for 1 s or more.
Fail-safe
•  Inhibits the rear vehicle monitoring system.
Possible cause
•  DTCs are stored in the PCM.
•  Battery malfunction
•  Generator malfunction
•  Rear vehicle monitoring control module (RH) connector or terminal malfunction
•  Rear vehicle monitoring control module (RH) power supply circuit malfunction
―  Short to ground in wiring harness between C/U IG1 15 A fuse and rear vehicle monitoring control module (RH) terminal G
―  C/U IG1 15 A fuse malfunction
―  Open circuit in wiring harness between IG1 relay and rear vehicle monitoring control module (RH) terminal G
•  Rear vehicle monitoring control module (RH) malfunction

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY PCM DTCs
•  Perform the DTC inspection for the PCM using the M-MDS.
•  Is the DTC displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See DTC TABLE [SKYACTIV-D 2.2].)
No
Go to the next step.
2
INSPECT BATTERY
•  Inspect the battery.
•  Is the battery normal?
Yes
Go to the next step.
No
Recharge or replace the battery, then go to Step 6.
(See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].)
(See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See BATTERY RECHARGING [SKYACTIV-D 2.2].)
(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
3
INSPECT GENERATOR
•  Inspect the generator.
•  Is the generator normal?
Yes
Go to the next step.
No
Replace the generator, then go to Step 6.
(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
4
INSPECT REAR VEHICLE MONITORING CONTROL MODULE (RH) CONNECTOR
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Disconnect the rear vehicle monitoring control modules (RH) connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 6.
5
VERIFY REAR VEHICLE MONITORING CONTROL MODULE (RH) POWER SUPPLY VOLTAGE
•  Reconnect all the disconnected connectors.
•  Connect the negative battery cable.
•  Display PID VPWR_R using the M-MDS.
•  Is the voltage B+?
Yes
Go to the next step.
No
Inspect the C/U IG1 15 A fuse.
•  If a fuse is burnt out:
―  Repair or replace the wiring harness which is shorted to ground.
―  Replace the fuse.
•  If a fuse is damaged:
―  Replace the fuse.
•  If the fuse is normal:
―  Repair or replace the wiring harness which has an open circuit.
Go to the next step.
6
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Reconnect all the disconnected connectors.
•  Reconnect the disconnected negative battery cable.
•  Clear the DTC for the rear vehicle monitoring control module using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 1.5 s or more.
•  Perform the DTC inspection for the rear vehicle monitoring control module using the M-MDS.
•  Is DTC U3003:16 displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the rear vehicle monitoring control module (RH), then go to the next step.
No
Go to the next step.
7
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [REAR VEHICLE MONITORING SYSTEM].)
No
DTC troubleshooting completed.


Rear Vehicle Monitoring Control Module Connector 12-pin Type

System malfunction location

Rear vehicle monitoring control module (RH) low power supply voltage input
Detection condition
•  Power supply circuit voltage of 9 V or less is detected in rear vehicle monitoring control module (RH) for 1 s or more.
Fail-safe
•  Inhibits the rear vehicle monitoring system.
Possible cause
•  DTCs are stored in the PCM.
•  Battery malfunction
•  Generator malfunction
•  Rear vehicle monitoring control module (RH) connector or terminal malfunction
•  Rear vehicle monitoring control module (RH) power supply circuit malfunction
―  Short to ground in wiring harness between C/U IG1 15 A fuse and rear vehicle monitoring control module (RH) terminal F
―  C/U IG1 15 A fuse malfunction
―  Open circuit in wiring harness between IG1 relay and rear vehicle monitoring control module (RH) terminal F
•  Rear vehicle monitoring control module (RH) malfunction

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY PCM DTCs
•  Perform the DTC inspection for the PCM using the M-MDS.
•  Is the DTC displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See DTC TABLE [SKYACTIV-D 2.2].)
No
Go to the next step.
2
INSPECT BATTERY
•  Inspect the battery.
•  Is the battery normal?
Yes
Go to the next step.
No
Recharge or replace the battery, then go to Step 6.
(See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].)
(See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See BATTERY RECHARGING [SKYACTIV-D 2.2].)
(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
3
INSPECT GENERATOR
•  Inspect the generator.
•  Is the generator normal?
Yes
Go to the next step.
No
Replace the generator, then go to Step 6.
(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
4
INSPECT REAR VEHICLE MONITORING CONTROL MODULE (RH) CONNECTOR
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Disconnect the rear vehicle monitoring control modules (RH) connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 6.
5
VERIFY REAR VEHICLE MONITORING CONTROL MODULE (RH) POWER SUPPLY VOLTAGE
•  Reconnect all the disconnected connectors.
•  Connect the negative battery cable.
•  Display PID VPWR_R using the M-MDS.
•  Is the voltage B+?
Yes
Go to the next step.
No
Inspect the C/U IG1 15 A fuse.
•  If a fuse is burnt out:
―  Repair or replace the wiring harness which is shorted to ground.
―  Replace the fuse.
•  If a fuse is damaged:
―  Replace the fuse.
•  If the fuse is normal:
―  Repair or replace the wiring harness which has an open circuit.
Go to the next step.
6
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Reconnect all the disconnected connectors.
•  Reconnect the disconnected negative battery cable.
•  Clear the DTC for the rear vehicle monitoring control module using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 1.5 s or more.
•  Perform the DTC inspection for the rear vehicle monitoring control module using the M-MDS.
•  Is DTC U3003:16 displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the rear vehicle monitoring control module (RH), then go to the next step.
No
Go to the next step.
7
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [REAR VEHICLE MONITORING SYSTEM].)
No
DTC troubleshooting completed.