Diagnosis And Testing
WARNING: This page is about a different car, the 2006 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The battery must be completely charged (12.4v) prior to testing. It may also be necessary to install a battery charger on the vehicles electrical system when performing this test.
- Rotate the headlamp switch (low beam) to the ON position.
- Disconnect the headlamp wire harness jumper electrical connector. This connector can be accessed by opening the lamp access panel, found in the appropriate front wheel well splash shield.
- Check PIN No. 1 for battery voltage. If no voltage is present, trace circuit until open or short is found. Refer to SYSTEM WIRING DIAGRAMS for complete schematic.
- Check PIN No. 2 for ground. If ground is not present, trace circuit until open or short is found. Refer to SYSTEM WIRING DIAGRAMS for complete schematic.
- Check PIN No. 3 for headlamp leveling sense voltage (2.83 - 8.60v). See Fig 2. If voltage is incorrect or not present, trace circuit until open or short is found.
- Ineffective switch: Using a scan tool, test the LIN data bus and the switch inputs/outputs as required.
- Ineffective CCN inputs/outputs: Using a scan tool, test the CAN data bus and the CCN inputs/outputs as required.
- Ineffective TIPM inputs/outputs: Using a scan tool, test the CAN data bus and the TIPM inputs/outputs as required. Verify input/output control. Check for TIPM DTC's.
- If no open or short is found, and headlamp leveling system is still inoperative, replace the headlamp leveling motor. Refer to REMOVAL .