For 1990-2009 cars

### Circuit Description

Internal defects in the sun roof actuator will set DTC 50, 51 or 55.

### Conditions for Setting the DTC

Sun roof actuator hardware failure (EEPROM, RAM or ROM are defective).

### Action Taken When the DTC Sets

DTC 50, 51 or 55 will set and the sun roof actuator will become disabled.

### Conditions for Clearing the DTC

• | DTC 50, 51 or 55 will clear when the fault is no longer present.

• | DTC 50, 51 or 55 can be cleared by using the scan tool.

### Diagnostic Aids

Replace the sun roof actuator.

### Test Description

1. This step replaces the sun roof actuator.

2. This step programs the sun roof actuator and also checks for any DTCs that may be present.

#### DTC 50, 51, or 55

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the Power Sun Roof System Check performed? | -- | Go to Step 2 | Go to Power Sunroof System Check
2 | Replace the sun roof actuator. Refer to Sunroof Actuator Replacement . Is the replacement complete? | -- | Go to Step 3 | --
3 |

1. Program the sun roof actuat Power Sunroof Operation .
2. Operate the sun roof through all of the available settings.
3. Install the scan tool.
4. Check for DTC 50, 51, or 55.

Are there any DTCs present?

--

Go to Step 1

System OK