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 | Did you perform the Power Sunroof Diagnostic System Check? | -- | Go to Step 2 | Go to Diagnostic System Check - Power Sunroof
2 |

1. Install the scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Select Power Roof and display the DTCs.

Does the scan tool display DTC 55?

--

Go to Step 3

Go to Step 4

3 | Replace the sun roof actuator. Refer to Power Sunroof Motor Replacement . Is the replacement complete? | -- | Go to Step 4 | --
4 |

1. Perform the setup procedure. Refer to Sunroof Motor Synchronization .
2. Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 3