DTC U3003:16 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)]

id09021n935200

Description

AFS control module low power supply voltage input

Detection condition

•  AFS control module power supply circuit voltage of 9.0 V or less is detected for 5 s or more with the ignition switched ON (engine off or on).

Fail-safe function

•  The swivel actuator is stopped at the position when the malfunction is determined.

•  The headlight leveling actuator is stopped at the position when the malfunction is determined.

Possible cause

•  DTCs are stored in the PCM.

•  Battery malfunction

•  Generator malfunction

•  AFS control module connector or terminal malfunction

•  AFS control module power supply circuit malfunction

―  Short to ground in wiring harness between METER1 10 A fuse and AFS control module terminal N

―  METER1 10 A fuse malfunction

―  Open circuit in wiring harness between IG1 relay and AFS control module terminal N

•  AFS control module malfunction

Description	AFS control module low power supply voltage input
Detection condition	• AFS control module power supply circuit voltage of 9.0 V or less is detected for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe function	• The swivel actuator is stopped at the position when the malfunction is determined. • The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause	• DTCs are stored in the PCM. • Battery malfunction • Generator malfunction • AFS control module connector or terminal malfunction • AFS control module power supply circuit malfunction ― Short to ground in wiring harness between METER1 10 A fuse and AFS control module terminal N ― METER1 10 A fuse malfunction ― Open circuit in wiring harness between IG1 relay and AFS control module terminal N • AFS control module malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY PCM DTCs • Retrieve the PCM DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 1.5].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].) (See ON-BOARD DIAGNOSTIC TEST [MZR 1.6].) • Are any DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See DTC TABLE [SKYACTIV-D 1.5].) (See DTC TABLE [SKYACTIV-D 2.2].) (See DTC TABLE [MZR 1.6].)
1		No	Go to the next step.
2	INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY INSPECTION [SKYACTIV-D 1.5].) (See BATTERY INSPECTION [SKYACTIV-D 2.2].) (See BATTERY INSPECTION [MZR 1.6].) • 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 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY RECHARGING [SKYACTIV-D 1.5].) (See BATTERY RECHARGING [SKYACTIV-D 2.2].) (See BATTERY RECHARGING [MZR 1.6].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 1.5].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) (See BATTERY REMOVAL/INSTALLATION [MZR 1.6].)
3	INSPECT GENERATOR • Inspect the generator. (See GENERATOR INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].) (See GENERATOR INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITH i-ELOOP)].) (See GENERATOR INSPECTION [SKYACTIV-D 1.5].) (See GENERATOR INSPECTION [SKYACTIV-D 2.2 (WITHOUT i-ELOOP)].) (See GENERATOR INSPECTION [SKYACTIV-D 2.2 (WITH i-ELOOP)].) (See GENERATOR INSPECTION [MZR 1.6].) • 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 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITH i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 1.5].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2 (WITHOUT i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2 (WITH i-ELOOP)].) (See GENERATOR REMOVAL/INSTALLATION [MZR 1.6].)
4	INSPECT AFS CONTROL MODULE CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 1.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].) • Disconnect the AFS control module 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 AFS CONTROL MODULE POWER SUPPLY VOLTAGE • Always reconnect all disconnected connectors. • Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 1.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].) • Display PID VPWR_IG using the M-MDS. (See PID/DATA MONITOR INSPECTION [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)].) • Is the voltage B+?	Yes	Go to the next step.
5		No	Inspect the METER1 10 A fuse. • If the fuse is blown: ― Refer to the wiring diagram and verify whether or not there is a common connector between METER1 10 A fuse and AFS control module terminal N. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to ground. • Replace the fuse. • If the fuse is damaged: ― Replace the fuse. • If the fuse is normal: ― Refer to the wiring diagram and verify whether or not there is a common connector between IG1 relay and AFS control module terminal N. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to the next step.
6	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Reconnect the disconnected negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 1.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].) • Clear the DTC for the AFS control module using the M-MDS. (See CLEARING DTC [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)].) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Retrieve the AFS control module DTCs using the M-MDS. (See DTC INSPECTION [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the AFS control module. (See ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION.) Go to the next step.
6		No	Go to the next step.
7	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)].)
7		No	DTC troubleshooting completed.