Power Sunroof Operates Erratically
POWER SUNROOF OPERATES ERRATICALLYDIAGNOSTIC AIDS
If a short to voltage is found on any of the sunroof switch data circuits, the sunroof switch may have an internal short circuit.
TEST DESCRIPTION
Steps 1-3:
Steps 4-5:
Steps 6-8:
Steps 9-12:
Steps 13-15:
Steps 16-17:
Steps 18-23:
Steps 24-29:
Steps 30-32:
The numbers below refer to the step numbers on the diagnostic table.
3. This step tests the sunroof switch data circuits for a short to ground or an open.
4. This step tests the sunroof switch data circuits for a short to voltage.
5. This step tests the sunroof switch for an internal short circuit or an open.
6. This step tests the sunroof switch for an internal short circuit or an open.
8. This step tests the sunroof limit switch low reference circuits of the sunroof motor hall effect sensors for an open.
9. This step tests the sunroof obstruction sensor 12 volt reference circuit for a short to ground.
10. This step tests the sunroof obstruction sensor 1 signal circuit for a short to ground.
12. This step tests the sunroof obstruction sensor 12 volt reference circuit for an open.
13. This step tests the sunroof obstruction sensor 1 signal circuit for a short to voltage or an open.
15. This step tests the sunroof limit switch soft stop signal circuit for a short to ground.
16. This step tests the sunroof obstruction sensor 2 signal circuit for a short to ground, a short to voltage or an open.
17. This step tests the sunroof limit switch soft stop signal circuit for an open.
18. This step tests the sunroof limit switch low reference circuit of the sunroof motor limit switch for an open.