G37x Coupe AWD V6-3.7L (VQ37VHR) (2009)
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2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the AFS control unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES - GO TO 2.
NO - Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of AFS control unit.
2. Check the resistance between the AFS control unit harness connector terminals.
Is the measurement value within the specification?
YES - GO TO 3.
NO - Repair the AFS control unit branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the AFS control unit. Refer to See: Lighting and Horns/Headlamp/Headlamp Alignment Control
Module/Testing and Inspection, "AFS CONTROL
Is the inspection result normal?
YES (Present error) - Replace the AFS control unit. Refer to See: Lighting and Horns/Headlamp/Headlamp Alignment Control Module/Service and
Repair/Exploded View.
YES (Past error) - Error was detected in the AFS control unit branch line.
NO - Repair the power supply and the ground circuit.
CAN System (Type 10)
AFS BRANCH LINE CIRCUIT
Diagnosis Procedure
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the AFS control unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES - GO TO 2.
NO - Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of AFS control unit.
2. Check the resistance between the AFS control unit harness connector terminals.
Is the measurement value within the specification?
YES - GO TO 3.
NO - Repair the AFS control unit branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the AFS control unit. Refer to See: Lighting and Horns/Headlamp/Headlamp Alignment Control
Module/Testing and Inspection, "AFS CONTROL
Is the inspection result normal?
YES (Present error) - Replace the AFS control unit. Refer to See: Lighting and Horns/Headlamp/Headlamp Alignment Control Module/Service and
Repair/Exploded View.
YES (Past error) - Error was detected in the AFS control unit branch line.
NO - Repair the power supply and the ground circuit.
CAN
DLC BRANCH LINE CIRCUIT
Diagnosis Procedure
