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 Slide switch to the close position.

Does the sunroof close?

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. Turn ON the ignition, with the engine OFF.
3. Test for ignition positive supply voltage at cavity 6 and cavity 12 of the sunroof control module connector. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 4

4 | Test the sunroof control module ground circuit at cavity 11 for a high resistance or an open condition. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 5
5 | Test for a short to ground in the sunroof limit switch No. 1 circuit between cavity 8 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 18 | Go to Step 6
6 | Test for a short to ground in the sunroof limit switch No. 2 circuit at cavity 9 of the sunroof control module connector. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 7
7 |

1. Operate the slide switch to the close position and hold.
2. Test for a high resistance or an open condition between cavity 2 of the sunroof control module and ground.

Did you measure a high resistance or an open condition?

Go to Step 8

Go to Step 9

8 |

1. Disconnect the sunroof switch assembly.
2. Operate the slide switch to the close position and hold.
3. Test the close switch for a high resistance or an open condition.

Did you measure a high resistance or an open condition in the switch?

Go to Step 12

Go to Step 14

9 |

1. Disconnect the sunroof actuator .
2. Test for a high resistance or an open condition in the RED and GRN wires between the sunroof actuator and the sunroof control module. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 10

10 |

1. Reconnect the sunroof control module connector.
2. Turn ON the ignition, with the engine OFF.
3. Connect a test lamp between cavity 1 and cavity 2 of the sunroof actuator.
4. Operate the slide switch to the open position.

Does the test lamp light?

Go to Step 13

Go to Step 11

11 | 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 18 | --
12 | 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 18 | --
13 | 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 18 | --
14 | Repair the open circuit between cavity 2 of the sunroof control module and ground. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 18 | --
15 | Replace the sunroof control module. Refer to Sunroof Actuator Replacement . Is the replacement complete? | Go to Step 18 | --
16 | Replace the sunroof switch assembly. Refer to Sunroof Switch Replacement . Is the replacement complete? | Go to Step 18 | --
17 | Replace the actuator assembly. Refer to Sunroof Actuator Replacement . Is the replacement complete? | Go to Step 18 | --
18 | Operate the system to verify the repair. Did you correct the condition? | System OK | Go to Step 3