Diagnostic Routine B
Diagnostic Routine B
Diagnostic Overview
A Single Mirror Is Inoperative - Non-Memory
Refer to Wiring Diagram Set 124 for schematic and connector information Electrical Diagrams.
Normal Operation and Fault Conditions
The RJB (Rear Junction Box) fuse 5 (25A) supplies voltage to the PDM (Passenger Door Module) at all times. Each exterior mirror shares a common circuit for both up/down and right/left movement.
DTC Fault Trigger Conditions
Visual Inspection and Diagnostic Pre-checks
- Inspect RJB (Rear Junction Box) fuse 5 (25A).
- Inspect the exterior mirror control switch.
Pinpoint Test
1. CHECK DDM (Driver Door Module) OR PDM (Passenger Door Module) DTCs (Diagnostic Trouble Codes)
1. Ignition ON.
2. Using a scan tool, perform the DDM (Driver Door Module) or PDM (Passenger Door Module) self-test.
Is DDM (Driver Door Module) or PDM (Passenger Door Module) DTC (Diagnostic Trouble Code) B1302:11 present?
2. CHECK THE MIRROR SELECTION SWITCH (MIRROR_SEL) DDM (Driver Door Module) PID (Parameter Identification)
1. Ignition ON.
2. Using a scan tool, monitor the MIRROR_SEL DDM (Driver Door Module) PID (Parameter Identification).
3. Operate the exterior mirror switch mirror selector to the LH (Left Hand) and RH (Right Hand) mirror positions.
Does the MIRROR_SEL DDM (Driver Door Module) PID (Parameter Identification) match in both selector positions?
3. CHECK THE MIRROR COMMANDED DIRECTION OF TRAVEL (Mirror_CTRL) DDM (Driver Door Module) PID (Parameter Identification)
1. Using a scan tool, monitor the Mirror_CTRL DDM (Driver Door Module) PID (Parameter Identification).
2. Operate the exterior mirror switch right, left, up and down positions.
Does the Mirror_CTRL DDM (Driver Door Module) PID (Parameter Identification) match in all switch positions?
4. CHECK THE LH (Left Hand) MIRROR COMMON CIRCUIT FOR VOLTAGE
1. Ignition OFF.
2. Disconnect: LH (Left Hand) Exterior Mirror.
3. Ignition ON.
4. Select the LH (Left Hand) exterior mirror on the exterior mirror control switch.
5. While operating the exterior mirror control switch in the right, left, up and down positions, measure:
Is voltage present in the left and down positions and no voltage in the right and up positions?
5. CHECK THE LH (Left Hand) MIRROR COMMON CIRCUIT FOR A SHORT TO VOLTAGE
1. Ignition OFF.
2. Disconnect: DDM (Driver Door Module) C501B.
3. Ignition ON.
4. Measure:
Is any voltage present?
6. CHECK THE LH (Left Hand) MIRROR COMMON CIRCUIT FOR A SHORT TO GROUND
1. Ignition OFF.
2. Measure:
Is the resistance greater than 10,000 ohms?
7. CHECK THE LH (Left Hand) MIRROR COMMON CIRCUIT FOR AN OPEN
1. Measure:
Is the resistance less than 3 ohms?
8. CHECK THE RH (Right Hand) MIRROR COMMON CIRCUIT FOR VOLTAGE
1. Ignition OFF.
2. Disconnect: RH (Right Hand) Exterior Mirror.
3. Ignition ON.
4. Select the RH (Right Hand) exterior mirror on the exterior mirror control switch.
5. While operating the exterior mirror control switch in the right, left, up and down positions, measure:
Is voltage present in the left and down positions and no voltage in the right and up positions?
9. CHECK THE RH (Right Hand) MIRROR COMMON CIRCUIT FOR A SHORT TO VOLTAGE
1. Ignition OFF.
2. Disconnect: PDM (Passenger Door Module) C652B.
3. Ignition ON.
4. Measure:
Is any voltage present?
10. CHECK THE RH (Right Hand) MIRROR COMMON CIRCUIT FOR A SHORT TO GROUND
1. Ignition OFF.
2. Measure:
Is the resistance greater than 10,000 ohms?
11. CHECK THE RH (Right Hand) MIRROR COMMON CIRCUIT FOR AN OPEN
1. Measure:
Is the resistance less than 3 ohms?
12. CHECK FOR CORRECT DDM (Driver Door Module) OPERATION
1. Disconnect and inspect all DDM (Driver Door Module) connectors.
2. 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
3. Reconnect the DDM (Driver Door Module) connectors and all previously disconnected exterior system connectors. Make sure they seat and latch correctly.
4. Operate the system and determine if the concern is still present.
Is the concern still present?
13. CHECK FOR CORRECT PDM (Passenger Door Module) OPERATION
1. Disconnect and inspect all PDM (Passenger Door Module) connectors.
2. 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
3. Reconnect the PDM (Passenger Door Module) connectors and all previously disconnected exterior system connectors. Make sure they seat and latch correctly.
4. Operate the system and determine if the concern is still present.
Is the concern still present?
