No.3 AFS OPERATES (BENDING LIGHT ILLUMINATES) WHEN AFS OFF SWITCH IS TURNED TO OFF [AFS (ADAPTABLE FRONT LIGHTING SYSTEM)]

id0903c6912300

3

AFS operates (light-bending illuminates) when AFS OFF switch is turned off.

DESCRIPTION

•  AFS operates (light-bending illuminates) while the AFS OFF switch is off (operation stopped)

•  AFS operates (light-bending illuminates) while the headlights one in a position other than low.

POSSIBLE CAUSE

•  Headlight low beam signal

―  Short to ground in wiring harness between light switch and AFS control module.

•  AFS control module does not receive AFS OFF signal

―  AFS OFF switch malfunction (stuck off)

―  Open circuit in wiring harness between AFS OFF switch terminal H (L.H.D.)/B (R.H.D.) and AFS control module terminal P

―  Open circuit in wiring harness between AFS OFF switch terminal K and ground

•  AFS control module malfunction

3	AFS operates (light-bending illuminates) when AFS OFF switch is turned off.
DESCRIPTION	• AFS operates (light-bending illuminates) while the AFS OFF switch is off (operation stopped) • AFS operates (light-bending illuminates) while the headlights one in a position other than low.
POSSIBLE CAUSE	• Headlight low beam signal ― Short to ground in wiring harness between light switch and AFS control module. • AFS control module does not receive AFS OFF signal ― AFS OFF switch malfunction (stuck off) ― Open circuit in wiring harness between AFS OFF switch terminal H (L.H.D.)/B (R.H.D.) and AFS control module terminal P ― Open circuit in wiring harness between AFS OFF switch terminal K and ground • AFS control module malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT HEADLIGHT LOW BEAM SIGNAL CIRCUIT FOR SHORT TO GROUND • Turn the light switch to OFF. • Disconnect the AFS control module connector. • Remove the headlight low relay from main fuse box. • Verify continuity between AFS control module wiring harness-side connector terminal F and body ground. • Is there any continuity?	Yes	Repair short to ground.
1		No	Go to the next step.
2	INSPECT IF MALFUNCTION IS IN INSTRUMENT CLUSTER OR ELSEWHERE • Connect the M-MDS to DLC-2. • Select the active command "WL+IL" using the M-MDS and turn on the warning light in the instrument cluster. (See ACTIVE COMMAND MODES TABLE [INSTRUMENT CLUSTER].) • Does the AFS OFF light illuminate and turn off according to the simulation function?	Yes	Go to the next step.
2		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
3	INSPECT IF MALFUNCTION IS IN AFS CONTROL MODULE OR ELSEWHERE • Switch the ignition to off. • Disconnect the AFS control module connector. • Turn the AFS OFF switch on. • Verify the continuity between the AFS control module wiring harness-side connector terminal P and body ground. • Is there continuity?	Yes	Inspect the pin connection of AFS control module terminal P. If a poor connection is detected, repair or replace the suspect part. If the pin connection is normal, replace the AFS control module. (See AFS (ADAPTIVE FRONT LIGHTING SYSTEM) CONTROL MODULE REMOVAL/INSTALLTION.)
3		No	Go to the next step.
4	INSPECT AFS OFF SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT • Switch the ignition to off. • Disconnect the AFS OFF switch connector and AFS control module connector. • Verify the continuity between AFS OFF switch terminal H (L.H.D.)/B (R.H.D.) and AFS control module terminal P. • Is there continuity?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning part for an open circuit.
5	INSPECT AFS OFF SWITCH • Inspect the AFS OFF switch. (See AFS (ADAPTIVE FRONT LIGHTING SYSTEM) OFF SWITCH INSPECTION.) • Is the AFS OFF switch normal?	Yes	Inspect for the following and repair or replace the malfunctioning part. • Wiring harness between the AFS OFF switch terminal K and body ground • Loose or poor connection in the ground point
5		No	Replace the AFS OFF switch. (See AFS (ADAPTIVE FRONT LIGHTING SYSTEM) OFF SWITCH REMOVAL/INSTALLATION.)