Voltmeter display: apprux. 5 Volts
- In the PST2 menu item Actual values, select Sensor voltage, spring travel 2 (rear)
- Connect a wiring harness jumper to terminals 4 and 5 of the sensor plug
PST 2 display: approx. 5 Volts
- If no fault is detected in the wires, replace the angle sensor for HBA.
Fault Code 5
FAULT CODE 5
5V Supply For Axle Position Sensors (Angle Sensors For HBA)
This fault is stored in the following cases:
1. Short circuit to voltage/ground in the supply leads between the control module and angle sensor for HBA
2. Angle sensor for HBA is faulty
3. The control module is faulty
Note:
The 5V supply voltage for the sensors is ensured via terminal 14 on the HBA control module. A fault in this supply lead affects both angle
sensors.
Elimination:
- Switch off ignition
- Pull plug off the angle sensor for HBA, front
- Switch ignition on
- Read the fault memory and observe whether fault code 5 reappears.
If fault code 5 does not reappear, the supply lead to the angle sensor for HBA, front, is faulty. Proceed as follows in this case:
- measure voltage between terminal 5 of the sensor plug and ground
Voltmeter display: approx. 5 Volts
- measure voltage between terminal 5 and terminal 1 of the sensor plug
Voltmeter display: approx. 5 Volts
- In the PST 2 menu item Actual values, select Sensor voltage, spring travel 1
- Connect a jumper to terminals 4 and 5 of the sensor plug
PST 2 display: approx. 5 Volts
- If no fault Is detected in the wires or control module, replace the angle sensor for HBA, front.
If fault code 5 reappears after the plug has been removed from the angle sensor for HBA, front, there is a fault in the supply lead to the angle
sensor for HBA, rear. Proceed as follows in this case:
- Pull plug off the angle sensor for HBA, rear
- measure voltage between terminal 5 of the sensor plug and ground
Voltmeter display: approx. 5 Volts
- measure voltage between terminal 5 and terminal 1 of the sensor plug
Voltmeter display: approx. 5 Volts
- In the PST 2 menu item Actual values, select Sensor voltage, spring travel 2
- Connect a jumper to terminals 4 arid 5 of the sensor plug