For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Sunroof Schematics
1 | Did you review the Sunroof Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Roof
2 |

1. Turn ON the ignition, with the engine OFF.
2. Operate the tilt switch to the up position.

Does the sunroof tilt up?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3 |

1. Disconnect the sunroof control module connector.
2. Test for a short to ground between cavity 9 of the power sunroof control module connector and ground.

Did you measure a short to ground?

Go to Step 5

Go to Step 4

4 | Test for a high resistance or an open condition between cavity 3 of the sunroof control module connector and ground while depressing the tilt switch to the Up position. Did you measure a high resistance or an open condition? | Go to Step 7 | Go to Step 10
5 |

1. Disconnect the sunroof actuator assembly connector.
2. Test for a short to ground between cavity 9 of the sunroof control module connector and ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 14

Go to Step 6

6 | Test for a high resistance or an open between cavity 9 of the control module connector and cavity 6 of the actuator connector. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 9
7 |

1. Disconnect the sunroof switch assembly connector.
2. Test for a high resistance or an open condition between cavity 3 of the sunroof control module connector and cavity 5 of the sunroof switch assembly connector. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 14

Go to Step 8

8 | Inspect for poor connections at the harness connector of the sunroof switch assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 13
9 | Inspect for poor connections at the harness connector of the sunroof actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 12
10 | Inspect for poor connections at the harness connector of the sunroof control module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 11
11 | Replace the sunroof control module. Refer to Sunroof Actuator Replacement . Is the replacement complete? | Go to Step 14 | --
12 | Replace the sunroof actuator. Refer to Sunroof Actuator Replacement . Is the repair complete? | Go to Step 14 | --
13 | Replace the sunroof switch assembly. Refer to Sunroof Switch Replacement . Is the repair complete? | Go to Step 14 | --
14 | Operate the system to verify the repair. Did you correct the condition? | System OK | Go to Step 3