Circuit/System Testing

Power Sunroof Malfunction

1. Ignition OFF, disconnect the harness connector at the sunroof control module.
2. Test for less than 5.0 Ω between the ground circuit terminal 1 and ground.
   • If greater than the specified range, test the ground circuit for an open/high resistance.
3. Verify that a test lamp illuminates between the B+ circuit terminal 6 and ground.
   • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the sunroof control module.
4. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 3 and ground.
   • If the test lamp does not illuminate, test the ignition circuit for an open/high resistance. If the circuit tests normal, refer to Retained Accessory Power Malfunction .
5. Connect the harness connector at the sunroof control module.
6. Disconnect the harness connector at the sunroof switch.
7. Test for less than 5.0 Ω between the ground circuit terminal B and ground.
   • If greater than the specified range, test the ground circuit for an open/high resistance.
NOTE:

Apply ground to the module for no longer than 2 seconds at a time or the module could be damaged.

When performing the following tests, make sure that the sunroof is not at its end of travel position by switching the grounded jumper to the other signal circuit if the sunroof did not move in one direction.

8. Momentarily install a 10-amp fused jumper wire between the signal circuit terminal D and ground. The sunroof should move.
   • If the sunroof does not move, test the signal circuit for a short to ground, short to voltage or an open/high resistance. If the circuit test is normal, replace the sunroof control module.
9. Momentarily install a 10-amp fused jumper wire between the signal circuit terminal E and ground. The sunroof should move.
   • If the sunroof does not move, test the signal circuit for a short to ground, short to voltage or an open/high resistance. If the circuit test is normal, replace the sunroof control module.
10. If all circuits test normal, test or replace the appropriate sunroof switch.

Power Sunroof Vent Malfunction

1. Perform the Sunroof Motor/Actuator Initialization/Teach Process (New Motor) Sunroof Motor/Actuator Initialization/Teach Process (New Roller Sunshade) Sunroof Motor/Actuator Initialization/Teach Process (Existing Motor) Sunroof Motor/Actuator Initialization/Teach Process (Existing Roller Sunshade) .
2. With the sunroof in the closed position, press the sunroof vent open switch. The sunroof should vent open.
   • If the sunroof does not vent open, replace the sunroof control module.
3. With the sunroof in the vent open position, press the sunroof vent close switch. The sunroof should close.
   • If the sunroof does not close, replace the sunroof control module.