Diagnostic Routine S

Diagnostic Routine S

Diagnostic Overview

A Single Power Window is Inoperative - LH Front

Refer to Wiring Diagram Set 100 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

REFER to Power Window Operation - Front .

DTC Fault Trigger Conditions

Visual Inspection and Diagnostic Pre-checks

- Verify BCM (Body Control Module) fuse 60 (10A) is OK.

- Verify RJB (Rear Junction Box) fuse 4 (25A) is OK.

Special Tool(s)

Pinpoint Test

1. CHECK FOR DDM (Driver Door Module) DTCs (Diagnostic Trouble Codes)

1. Ignition ON.

2. Using a scan tool, perform DDM (Driver Door Module) self-test.

Are any DDM (Driver Door Module) DTCs (Diagnostic Trouble Codes) present?

2. CHECK THE FRONT LEFT DOOR WINDOW SWITCH (FL_WDW) PID (Parameter Identification)

1. Ignition ON.

2. Using a scan tool, view DDM (Driver Door Module) PIDs (Parameter Identifications).

3. Monitor the DDM (Driver Door Module) PID (Parameter Identification) FL_WDW while pressing and releasing the master window control switch in the up and down positions.

Does the PID (Parameter Identification) status agree with the master window control switch as it is pressed and released?

3. CHECK FOR A SHORT TO VOLTAGE IN THE WINDOW UP/DOWN CIRCUITS

1. Ignition OFF.

2. Disconnect: LH (Left Hand) Front Power Window Motor.

3. Disconnect: DDM (Driver Door Module) C501A.

4. Ignition ON.

5. Measure:

Is any voltage present?

4. CHECK FOR A SHORT TO GROUND IN THE WINDOW UP/DOWN CIRCUITS

1. Ignition OFF.

2. Measure:

Are the resistances greater than 10,000 ohms?

5. CHECK FOR AN OPEN IN THE WINDOW UP/DOWN CIRCUITS

1. Measure:

Are the resistances less than 3 ohms?

6. CHECK THE DDM (Driver Door Module) OUTPUT

NOTICE: The following step uses a test light to simulate normal circuit loads. Use only the test light recommended in the Special Tools table at the beginning of this system. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

NOTE: Because the power window motor electrical connector (Hall-effect sensor input) is disconnected, the DDM (Driver Door Module) only activates the window output for approximately 500 ms then turns off.

1. Ignition OFF.

2. Connect: DDM (Driver Door Module) C501A.

3. Ignition ON.

4. Activate the master window control switch in the up and down positions while observing the test light.

5. Measure:

Does the test light momentarily illuminate when the master window control switch is activated in both up and down positions?

7. CHECK THE HALL-EFFECT POWER AND RETURN CIRCUITS

NOTICE: The following step uses a test light to simulate normal circuit loads. Use only the test light recommended in the Special Tools table at the beginning of this system. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

1. Ignition OFF.

2. Disconnect: LH (Left Hand) Front Power Window Motor.

3. Ignition ON.

4. Measure:

Does the test light illuminate?

8. CHECK FOR AN OPEN IN THE HALL-EFFECT POWER AND RETURN CIRCUITS

1. Ignition OFF.

2. Disconnect: DDM (Driver Door Module) C501A.

3. Measure:

Are the resistances less than 3 ohms?

9. CHECK THE HALL-EFFECT POWER CIRCUIT FOR A SHORT TO GROUND

1. Ignition OFF.

2. Disconnect: DDM (Driver Door Module) C501A.

3. Measure:

Is the resistance greater than 10,000 ohms?

10. CHECK THE HALL-EFFECT POWER CIRCUIT FOR A SHORT TO GROUND WITH THE POWER WINDOW MOTOR DISCONNECTED

1. Disconnect: LH (Left Hand) Front Power Window Motor.

2. Measure:

Is the resistance greater than 10,000 ohms?

11. CHECK FOR A SHORT TO VOLTAGE IN THE HALL-EFFECT SIGNAL CIRCUITS

1. Ignition OFF.

2. Disconnect: DDM (Driver Door Module) C501A.

3. Ignition ON.

4. Measure:

Is any voltage present?

12. CHECK FOR A SHORT TO GROUND IN THE HALL-EFFECT SIGNAL CIRCUITS

1. Ignition OFF.

2. Measure:

Are the resistances greater than 10,000 ohms?

13. CHECK FOR AN OPEN IN THE HALL-EFFECT SIGNAL CIRCUITS

1. Measure:

Are the resistances less than 3 ohms?

14. CHECK FOR VOLTAGE TO THE MASTER WINDOW CONTROL SWITCH

1. Ignition OFF.

2. Disconnect: Master Window Control Switch.

3. Ignition ON.

4. Measure:

Is the voltage greater than 11 volts?

15. CHECK THE MASTER WINDOW CONTROL SWITCH GROUND CIRCUIT

NOTICE: The following step uses a test light to simulate normal circuit loads. Use only the test light recommended in the Special Tools table at the beginning of this system. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

1. Ignition ON.

2. Measure:

Does the test light illuminate?

16. CHECK THE MASTER WINDOW CONTROL SWITCH GROUND CIRCUIT FOR AN OPEN

1. Ignition OFF.

2. Disconnect: DDM (Driver Door Module) C501B.

3. Measure:

Is the resistance less than 3 ohms?

17. CHECK THE MASTER WINDOW CONTROL SWITCH LIN (Local Interconnect Network) CIRCUIT FOR AN OPEN

1. Ignition OFF.

2. Disconnect: DDM (Driver Door Module) C501B.

3. Measure:

Is the resistance less than 3 ohms?

18. CHECK FOR CORRECT DDM (Driver Door Module) OPERATION

1. Ignition OFF.

2. Disconnect and inspect all the DDM (Driver Door Module) connectors.

3. Repair:

- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins as necessary
- pushed-out pins - install new pins as necessary

4. Reconnect: the DDM (Driver Door Module) connectors. Make sure they seat and latch correctly.

5. Reconnect all previously disconnected connectors.

6. Ignition ON.

7. Operate the system and determine if the concern is still present.

Is the concern still present?