| Diagnosis and Testing Inspection and Verification - Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart | Mechanical | Electrical | | Exterior mirror(s) | Fuse(s) | | | Door module | | | Electrical connector(s) | | | Switch(es) | - If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
- If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
Symptom Chart | Symptom | Possible Sources | Action | | The mirrors are inoperative | * Exterior mirror switch. * LIN Bus. | * REFER to WDS. | | A single mirror is inoperative | * Exterior mirror switch. * Door module. * LIN Bus. | * REFER to WDS. | | * Circuit(s). | * | | A single mirror does not function with switch logic | * Exterior mirror switch. * Door module. * LIN Bus. | * REFER to WDS. | | * Circuit(s). * Exterior mirror motor(s). | * | | The heated exterior mirror is inoperative | * Heated rear window switch. * Door module. * LIN Bus. | * REFER to WDS. | | * Circuit(s). * Heated mirror element(s). | * | | The auto dimming mirror does not operate correctly | * Auto-dimming interior mirror. * Circuit(s). | * | | The power folding mirrors do not operate/ do not operate correctly | * Exterior mirror switch. * Power fold mirror switch. * Door module. * Central junction box (CJB). * LIN Bus. | * REFER to WDS. | | * Power fold mirror(s). * Circuit(s). | * | Pinpoint Tests | PINPOINT TEST A : A SINGLE MIRROR IS INOPERATIVE | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | A1: CHECK FOR CONTINUITY BETWEEN THE INOPERATIVE EXTERIOR MIRROR AND THE DOOR MODULE | NOTE:Use a digital multimeter for all electrical measurements. | | | 1 Disconnect Inoperative Exterior Mirror C5PM26 or C5PM31. | | | 2 Disconnect Driver Door Module C5PL01-B or Passenger Door Module C6PL01-B. | | | 3 Measure the resistance between the: Driver Exterior Mirror - Driver door module C5PL01-B pin 9, circuit CPM03A (BU/WH), harness side and the driver side exterior mirror C5PM26 pin A-2, circuit CPM03A (BU/WH), harness side.
| | | Is the resistance less than 5 ohms? Yes INSTALL a new exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
TEST the system for normal operation. No REPAIR circuit CPM03A (BU/WH) or circuit CPM06A (GN/WH). TEST the system for normal operation. | | PINPOINT TEST B : A SINGLE MIRROR DOES NOT FUNCTION WITH SWITCH LOGIC | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | B1: CHECK THE EXTERIOR MIRROR FUNCTIONS WITH SWITCH LOGIC | NOTE:Use a digital multimeter for all electrical measurements. | | | 1 Operate the exterior mirror switch. | | | Does the exterior mirror function with switch logic? Yes VERIFY the customer concern. No Driver side exterior mirror UP/DOWN inoperative - GO to B2. Driver side exterior mirror LEFT/RIGHT inoperative - GO to B4. Passenger side exterior mirror UP/DOWN inoperative - GO to B6. Passenger side exterior mirror LEFT/RIGHT inoperative - GO to B8. | | B2: CHECK THE DRIVER SIDE EXTERIOR MIRROR UP/DOWN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Driver Side Exterior Mirror C5PM26-A. | | | 3 Ignition switch in position II. | | | 4 Select the driver side exterior mirror. While operating the exterior mirror switch UP and DOWN, measure the voltage between the driver side exterior mirror C5PM26-A pin 2, circuit CPM03A (BU/WH), harness side and the driver side exterior mirror C5PM26-A pin 3, circuit CPM28A (BU/BN), harness side. | | | Is the voltage greater than 10 volts when the exterior mirror switch is moved to the UP position and is the polarity reversed when moved to the DOWN position? Yes INSTALL a new driver side exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
TEST the system for normal operation. No | | B3: CHECK THE DRIVER SIDE EXTERIOR MIRROR UP/DOWN CIRCUIT FOR CONTINUITY | | | 1 Ignition switch in position 0. | | | 2 Disconnect Driver Door Module C5PL01-B. | | | 3 Measure the resistance between the driver door module C5PL01-B pin 24, circuit CPM29A (GN), harness side and the driver side exterior mirror C5PM26-A pin 3, circuit CPM28A (BU/BN), harness side. | | | Is the resistance less than 5 ohms? Yes VERIFY the customer concern. TEST the system for normal operation. No REPAIR circuit CPM28A (BU/BN). TEST the system for normal operation. | | B4: CHECK THE DRIVER SIDE EXTERIOR MIRROR LEFT/RIGHT CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Driver Side Exterior Mirror C5PM26-A. | | | 3 Ignition switch in position II. | | | 4 Select the driver side exterior mirror. While operating the exterior mirror switch LEFT and RIGHT, measure the voltage between the driver side exterior mirror C5PM26-A pin 1, circuit CPM29A (GN), harness side and the driver side exterior mirror C5PM26-A pin 2, circuit CPM29A (GN), harness side. | | | Is the voltage greater than 10 volts when the exterior mirror switch is moved to the LEFT position and is the polarity reversed when moved to the RIGHT position? Yes INSTALL a new driver side exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
TEST the system for normal operation. No | | B5: CHECK THE DRIVER SIDE EXTERIOR MIRROR LEFT/RIGHT CIRCUIT FOR CONTINUITY | | | 1 Ignition switch in position 0. | | | 2 Disconnect Driver Door Module C5PL01-B. | | | 3 Measure the resistance between the driver door module C5PL01-B pin 8, circuit CPM29A (GN), harness side and the driver side exterior mirror C5PM26-A pin 1, circuit CPM29A (GN), harness side. | | | Is the resistance less than 5 ohms? Yes VERIFY the customer concern. TEST the system for normal operation. No REPAIR circuit CPM29A (GN). TEST the system for normal operation. | | B6: CHECK THE PASSENGER SIDE MIRROR UP/DOWN CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Passenger Side Exterior Mirror C5PM31-A. | | | 3 Ignition switch in position II. | | | 4 Select the passenger side exterior mirror. While operating the exterior mirror switch UP and DOWN, measure the voltage between the passenger side exterior mirror C5PM31-A pin 2, circuit CPM06A (GN/WH), harness side and the passenger side exterior mirror C5PM31-A pin 3, circuit CPM33A (VT/BK), harness side. | | | Is the voltage greater than 10 volts when the exterior mirror switch is moved to the UP position and is the polarity reversed when moved to the DOWN position? Yes INSTALL a new passenger side exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
TEST the system for normal operation. No | | B7: CHECK THE PASSENGER SIDE MIRROR UP/DOWN CIRCUIT FOR CONTINUITY | | | 1 Ignition switch in position 0. | | | 2 Disconnect Passenger Door Module C6PL01-B. | | | 3 Measure the resistance between the passenger door module C6PL01-B pin 24, circuit CPM33A (VT/BK), harness side and the passenger side exterior mirror C5PM31-A pin 3, circuit CPM33A (VT/BK), harness side. | | | Is the resistance less than 5 ohms? Yes VERIFY the customer concern. TEST the system for normal operation. No REPAIR circuit CPM33A (VT/BK). TEST the system for normal operation. | | B8: CHECK THE PASSENGER SIDE EXTERIOR MIRROR LEFT/RIGHT CIRCUIT | | | 1 Ignition switch in position 0. | | | 2 Disconnect Passenger Side Exterior Mirror C5PM31-A. | | | 3 Ignition switch in position II. | | | 4 Select the passenger side exterior mirror. While operating the exterior mirror switch LEFT and RIGHT, measure the voltage between the passenger side exterior mirror C5PM31-A pin 1, circuit CPM34A (WH/BN), harness side and the passenger side exterior mirror C5PM31-A pin 2, circuit CPM06A (GN/WH), harness side. | | | Is the voltage greater than 10 volts when the exterior mirror switch is moved to the LEFT position and is the polarity reversed when moved to the RIGHT position. Yes INSTALL a new passenger side exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
TEST the system for normal operation. No | | B9: CHECK THE PASSENGER SIDE EXTERIOR MIRROR LEFT/RIGHT CIRCUIT FOR CONTINUITY | | | 1 Ignition switch in position 0. | | | 2 Disconnect Passenger Door Module C6PL01-B. | | | 3 Measure the resistance between the passenger door module C6PL01-B pin 8, circuit CPM34A (WH/BN), harness side and the passenger side exterior mirror C5PM31-A pin 1, circuit CPM34A (WH/BN), harness side. | | | Is the resistance less than 5 ohms? Yes VERIFY the customer concern. TEST the system for normal operation. No REPAIR circuit CPM34A (WH/BN). TEST the system for normal operation. | | PINPOINT TEST C : THE HEATED EXTERIOR MIRROR IS INOPERATIVE | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | C1: CHECK THE OPERATION OF THE HEATED REAR WINDOW | NOTE:Use a digital multimeter for all electrical measurements. | | | 1 Ignition switch in position III. | | | 2 Ignition switch in position II. | | | 3 Operate the heated rear window switch. | | | Does the heated rear window function correctly? Yes No REPAIR the heated rear window.
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).
TEST the system for normal operation. | | C2: CHECK THE VOLTAGE TO THE INOPERATIVE EXTERIOR MIRROR | | | 1 Ignition switch in position 0. | | | 2 Disconnect Inoperative Exterior Mirror C5PM26-A or C5PM31-A. | | | 3 Ignition switch in position III. | | | 4 Ignition switch in position II. | | | 5 Operate the heated rear window switch. | | | 6 Measure the voltage between the: - Driver side exterior mirror C5PM26-A pin 5, circuit CRD13A (GN/VT), harness side and ground.
- Passenger side exterior mirror C5PM31-A pin 5, circuit CRD14A (WH/OG), harness side and ground.
| | | Is the voltage greater than 10 volts? Yes No REPAIR circuit CRD13A (GN/VT) or circuit CRD14A (WH/OG). TEST the system for normal operation. | | C3: CHECK THE INOPERATIVE EXTERIOR MIRROR GROUND CIRCUIT FOR CONTINUITY | | | 1 Ignition switch in position 0. | | | 2 Disconnect Inoperative Mirror Door Module C5PL01-B or C6PL01-B. | | | 3 Measure the resistance between the: - Driver side exterior mirror C5PM26-A pin 5, circuit CRD13A (GN/VT), harness side and the driver side door module C5PL01-B pin 10, circuit CRD13A (GN/VT).
- Passenger side exterior mirror C5PM31-A pin 5, circuit CRD14A (WH/OG), harness side and the passenger side door module C6PL01-B pin 10, circuit CRD14A (WH/OG).
| | | Is the resistance less than 5 ohms? operation. Yes INSTALL a new heated exterior mirror glass. TEST the system for normal operation. No REPAIR circuit CRD13A (GN/VT) or circuit CRD14A (WH/OG). TEST the system for normal operation. | | PINPOINT TEST D : THE AUTO DIMMING MIRROR DOES NOT OPERATE CORRECTLY | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | D1: CHECK FOR CONTINUITY BETWEEN THE AUTO-DIMMING INTERIOR MIRROR AND GROUND | NOTE:Use a digital multimeter for all electrical measurements. | | | 1 Disconnect Auto-dimming Interior Mirror C9PM05. | | | 2 Measure the resistance between the auto-dimming interior mirror C9PM05 pin 2, circuit GD138AA (BK/WH), harness side and ground. | | | Is the resistance less than 5 ohms? Yes No REPAIR circuit 91-AD15 (BK/OG). TEST the system for normal operation. | | D2: CHECK THE VOLTAGE TO THE AUTO-DIMMING INTERIOR MIRROR | | | 1 Ignition switch in position II. | | | 2 Measure the voltage between the auto-dimming interior mirror C9PM05 pin 1, circuit B_CBP04A (VT), harness side and ground. | | | Is the voltage greater than 10 volts? Yes No REPAIR circuit B_CBP04A (VT). TEST the system for normal operation. | | D3: CHECK THE REVERSE CUT-OUT VOLTAGE TO THE AUTO-DIMMING INTERIOR MIRROR | | | 1 Select N (NEUTRAL). | | | 2 Measure the voltage between the auto-dimming interior mirror C9PM05 pin 3, circuit RRD12A (BN), harness side and ground. | | | Is any voltage present? Yes No | | D4: CHECK FOR VOLTAGE TO THE AUTO-DIMMING INTERIOR MIRROR | | | 1 Ignition switch in position 0. | | | 2 Disconnect Transmission Switch C1ET47-A-1 or Transmission Switch C1ET47-C-1. | | | 3 Ignition switch in position II. | | | 4 Measure the voltage between the auto-dimming interior mirror C9PM05 pin 3, circuit RRD12A (BN), harness side and ground. | | | Is any voltage present? Yes INSTALL a new transmission switch. TEST the system for normal operation. No REPAIR circuit RRD12A (BN). TEST the system for normal operation. | | D5: CHECK THE REVERSE CUT-OUT VOLTAGE TO THE AUTO-DIMMING INTERIOR MIRROR | | | 1 Select R (REVERSE). | | | 2 Measure the voltage between the auto-dimming interior mirror C9PM05 pin 3, circuit RRD12A (BN), harness side and ground. | | | Is the voltage greater than 10 volts? Yes INSTALL a new auto-dimming interior mirror.
REFER to: Interior Rear View Mirror - Vehicles With: Rain Sensor/Autolamps (501-09 Rear View Mirrors, Removal and Installation).
TEST the system for normal operation. No REPAIR circuit RRD12A (BN). TEST the system for normal operation. | | PINPOINT TEST E : THE POWER FOLDING MIRRORS DO NOT OPERATE/DO NOT OPERATE CORRECTLY | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | E1: CHECK THE POWER FOLDING MIRRORS FOLD CIRCUIT | NOTE:Use a digital multimeter for all electrical measurements. | | | 1 Disconnect Driver Door Module C5PL01-B or Passenger Door Module C6PL01-B. | | | 2 Disconnect Driver Side Exterior Mirror C5PM26-A or Passenger Side Exterior Mirror C5PM31-A. | | | 3 Measure the resistance between the: - Driver door module C5PL01-B pin 17, circuit CPM04A (VT/BN), harness side and the power folding mirror motor C5PM26-A pin 4, circuit CPM04A (VT/BN), harness side.
- Passenger door module C6PL01-B pin 17, circuit CPM07A (BN), harness side and the power folding mirror motor C5PM31-A pin 4, circuit CPM07A (BN), harness side.
| | | Is the resistance less than 5 ohms? Yes No Driver side - REPAIR circuit CPM04A (VT/BN). TEST the system for normal operation. Passenger side - REPAIR circuit CPM07A (BN). TEST the system for normal operation. | | E2: CHECK THE POWER FOLDING MIRRORS UNFOLD CIRCUIT | | | 1 Measure the resistance between the: - Driver door module C5PL01-B pin 24, circuit CPM28A (BU/BN), harness side and the power folding mirror motor C5PM26-A pin 3, circuit CPM28A (BU/BN), harness side.
- Passenger door module C6PL01-B pin 24, circuit CPM33A (VT/BK), harness side and the power folding mirror motor C5PM31-A pin 3, circuit CPM33A (VT/BK), harness side.
| | | Is the resistance less than 5 ohms? Yes INSTALL a new power folding exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
TEST the system for normal operation. No Driver side - REPAIR circuit CPM28A (BU/BN). TEST the system for normal operation. Passenger side - REPAIR circuit CPM33A (VT/BK). TEST the system for normal operation. | |
