DTC U3003:16 [FORWARD SENSING CAMERA (FSC)]

id0902p9030900

System malfunction location

Forward sensing camera (FSC) low power supply voltage input

Detection condition

•  Forward sensing camera (FSC) power supply circuit voltage of 7.2 V or less is detected for 5 s or more with the ignition switched ON (engine off or on).

Fail-safe

•  Inhibits the lane departure warning system (LDWS).

•  Inhibits the high beam control system (HBC).

Possible cause

•  DTCs are stored in the PCM.

•  Battery malfunction

•  Generator malfunction

•  Forward sensing camera (FSC) connector or terminal malfunction

•  Forward sensing camera (FSC) power supply circuit malfunction

―  Short to ground in wiring harness between C/U IG1 15 A fuse and forward sensing camera (FSC) terminal I

―  C/U IG1 15 A fuse malfunction

―  Open circuit in wiring harness between IG1 relay and forward sensing camera (FSC) terminal I

•  Forward sensing camera (FSC) malfunction

System malfunction location	Forward sensing camera (FSC) low power supply voltage input
Detection condition	• Forward sensing camera (FSC) power supply circuit voltage of 7.2 V or less is detected for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe	• Inhibits the lane departure warning system (LDWS). • Inhibits the high beam control system (HBC).
Possible cause	• DTCs are stored in the PCM. • Battery malfunction • Generator malfunction • Forward sensing camera (FSC) connector or terminal malfunction • Forward sensing camera (FSC) power supply circuit malfunction ― Short to ground in wiring harness between C/U IG1 15 A fuse and forward sensing camera (FSC) terminal I ― C/U IG1 15 A fuse malfunction ― Open circuit in wiring harness between IG1 relay and forward sensing camera (FSC) terminal I • Forward sensing camera (FSC) malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY PCM DTCs • Perform the DTC inspection for the PCM using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].) • 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].)
1		No	Go to the next step.
2	INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See BATTERY INSPECTION [SKYACTIV-D 2.2].) • Is the battery normal?	Yes	Go to the next step.
2		No	Recharge or replace the battery, then go to Step 6. (See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (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. (See GENERATOR INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See GENERATOR INSPECTION [SKYACTIV-D 2.2].) • Is the generator normal?	Yes	Go to the next step.
3		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 FORWARD SENSING CAMERA (FSC) CONNECTOR • Switch the ignition to off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Disconnect the forward sensing camera (FSC) 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.
4		No	Repair or replace the connector, then go to Step 6.
5	VERIFY FORWARD SENSING CAMERA (FSC) POWER SUPPLY VOLTAGE • Reconnect all the disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Display PID VPWR_IG1 using the M-MDS. (See PID/DATA MONITOR INSPECTION [FORWARD SENSING CAMERA (FSC)].) • Is the voltage B+?	Yes	Go to the next step.
5		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. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Clear the forward sensing camera (FSC) DTCs using the M-MDS. (See CLEARING DTC [FORWARD SENSING CAMERA (FSC)].) • Switch the ignition ON (engine off or on) and wait for 6.5 s or more. • Perform the DTC inspection for the forward sensing camera (FSC) using the M-MDS. (See DTC INSPECTION [FORWARD SENSING CAMERA (FSC)].) • Is DTC U3003:16 displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the forward sensing camera (FSC), then go to the next step. (See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION.)
6		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 [FORWARD SENSING CAMERA (FSC)].)
7		No	DTC troubleshooting completed.