DTC B10A4:86 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)]

id09021n934600

Description

Communication error with swivel actuator (RH)

Detection condition

•  AFS control module received error signals from the swivel actuator (RH) three times continuously with the ignition switched ON (engine off or on).

•  AFS control module could not receive the signal from the swivel actuator (RH) for 5 s or more with the ignition switched ON (engine off or on).

Fail-safe function

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

•  The swivel actuator (LH) is moved to the center.

•  Control of the headlight auto leveling system is continued with the headlight leveling actuator positioned −0.6° from where the malfunction is determined.

Possible cause

•  Igniter (RH) poor connection

•  Front combination light (RH) connector or terminal malfunction

•  AFS control module connector or terminal malfunction

•  Open circuit in wiring harness between the following terminals:

―  AFS control module terminal D—Front combination light (RH) terminal K

―  AFS control module terminal F—Front combination light (RH) terminal J

•  Swivel actuator (RH) malfunction

•  AFS control module malfunction

Description	Communication error with swivel actuator (RH)
Detection condition	• AFS control module received error signals from the swivel actuator (RH) three times continuously with the ignition switched ON (engine off or on). • AFS control module could not receive the signal from the swivel actuator (RH) for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe function	• The swivel actuator (RH) is stopped at the position when the malfunction is determined. • The swivel actuator (LH) is moved to the center. • Control of the headlight auto leveling system is continued with the headlight leveling actuator positioned −0.6° from where the malfunction is determined.
Possible cause	• Igniter (RH) poor connection • Front combination light (RH) connector or terminal malfunction • AFS control module connector or terminal malfunction • Open circuit in wiring harness between the following terminals: ― AFS control module terminal D—Front combination light (RH) terminal K ― AFS control module terminal F—Front combination light (RH) terminal J • Swivel actuator (RH) malfunction • AFS control module malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY IGNITER (RH) INSTALLATION CONDITION • Verify the installation condition of the igniter (RH). (See IGNITER REMOVAL/INSTALLATION.) • Is the igniter (RH) installed correctly?	Yes	Go to the next step.
1		No	Install the igniter (RH) correctly, then go to Step 6. (See IGNITER REMOVAL/INSTALLATION.)
2	INSPECT FRONT COMBINATION LIGHT (RH) 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 front combination light (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.
2		No	Repair or replace the connector, then go to Step 6.
3	INSPECT AFS CONTROL MODULE CONNECTOR CONDITION • 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.
3		No	Repair or replace the connector, then go to Step 6.
4	INSPECT FOR OPEN CIRCUIT IN SWIVEL ACTUATOR (RH) CIRCUIT • Verify that the front combination light (RH) and AFS control module connectors are disconnected. • Inspect for continuity between the following terminals (wiring harness-side): ― AFS control module terminal D—Front combination light (RH) terminal K ― AFS control module terminal F—Front combination light (RH) terminal J • Is there continuity?	Yes	Go to the next step.
4		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • AFS control module terminal D—Front combination light (RH) terminal K • AFS control module terminal F—Front combination light (RH) terminal J 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 Step 6.
5	PERFORM DTC INSPECTION AND VERIFY SWIVEL ACTUATOR (RH) MALFUNCTION • 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	Replace the front combination light (RH), then go to the next step. (See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION.)
5		No	Go to Step 7.
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.