Test Point 16

TEST POINT 16
Lumbar Pressure Sensor Open Circuit

Fault Code 18
This fault is stored in the following cases:

1. There is an open circuit in the wire to the lumbar pressure sensor.
2. The pressure sensor is faulty.
3. The control module is faulty.

Fault Effect: No automatic adjustment of the lumbar supports possible

Elimination:

- Check plug on control module for contact and damage.

- Check wire to sensor for damage.

- If no fault is detected in the wire, replace lumbar adjustment

- Once the cause of the fault has been found and eliminated, actuate the lumbar adjustment switch. The text in the fault memory changes from present to not present if the cause of the fault has really been eliminated.

- If the fault is still present, replace control module.