- Switch ignition on
- Switch the high beam on and measure the voltage between plug pin 15 (high beam on signal) and ground.
Voltmeter display: > 10 Volts
If the high beam signal is present at the control module, replace the control module. If the high beam signal is not present at the control module,
check for an open circuit in the wire.
Fault Code 1
FAULT CODE 1
motor Circuit, Left
This fault is stored in the following cases:
1. Short circuit to ground or open circuit in the circuit between control module and servomotor for HBA, left, terminals 1, 2, 3, 4
2. Servomotor for HBA, left, is faulty
3. The control module is faulty
Elimination:
- Switch off ignition
- Pull plug off the control module
- Pull plug off the servomotor for HBA
- Check for open circuit in the supply leads to the servomotor for HBA, terminals 1, 2, 3, 4
Ohmmeter display: < 5 ohms
- Check for short to B+ in the supply leads to the servomotor for HBA
- Ohmmeter connected to terminals 1, 2, 3, and 4; measure resistance to ground
Display: infinity
- Check for short circuits between the supply leads.
- If no fault is detected in the wires, replace the servomotor for HBA. Also check the plug on the wiring harness side and replace if necessary.
Fault Code 2
FAULT CODE 2
motor Circuit, Right
This fault is stored in the following cases:
1. Short circuit to ground or open circuit in the circuit between control module and servomotor for HBA, right, terminals 5, 6, 7, 8
2. Servomotor for HBA, right, is faulty
3. The control module is faulty
Elimination:
- Switch off ignition
- Pull plug off the control module
- Pull plug off the servomotor for HEA
- Check for open circuit in the supply leads to the servomotor for HBA, right, terminals 5, 6, 7, 8
Ohmmeter display: < 5 ohms
- Check for short to B+ in the supply leads to the servomotor for HBA
- Ohmmeter connected to terminals 5, 6, 7, and 8; measure resistance ro ground