Inspection and Verification
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage. VISUAL INSPECTION CHART Mechanical Electrical Interior auto-dimming rear view mirror Exterior mirror Exterior mirror control switch Battery junction box (BJB) fuse(s): 49 (15A) Smart junction box (SJB) fuse(s): 12 (7.5A) 31 (10A) 41 (15A) Driver seat module (DSM) HVAC Electronic automatic temperature control (EATC) HVAC Electronic manual temperature control (EMTC) Exterior mirror Exterior mirror control switch Exterior mirror glass Exterior mirror motor Heated rear window relay Interior auto-dimming rear view mirror Loose or corroded connections Wiring harness
- 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, connect the scan tool to the data link connector (DLC).
- If the scan tool does not communicate with the VCM: check the VCM connection to the vehicle. check the scan tool connection to the VCM. refer to «MODULE COMMUNICATIONS NETWORK»(ref-293472) article, No Power To The Scan Tool, to diagnose no communication with the scan tool.
- If the scan tool does not communicate with the vehicle: verify the ignition key is in the ON position. verify the scan tool operation with a known good vehicle. refer to «MODULE COMMUNICATIONS NETWORK»(ref-293472) article to diagnose no response from the DSM.
- Carry out the network test. If the scan tool responds with no communication from one or more modules, refer to «MODULE COMMUNICATIONS NETWORK»(ref-293472) article. If the network test passes, retrieve and record the continuous memory DTCs.
- Clear the continuous DTCs and carry out the self-test diagnostics for the DSM.
- If the DTCs retrieved are related to the concern, go to the Driver Seat Module (DSM) DTC Table. For all other DTCs, refer to «MULTIFUNCTION ELECTRONIC MODULES»(ref-293473) article.
- If no DTCs related to the concern are retrieved, go to «Symptom Chart»(ref-293465-S22559185302008080700000) .
| DTC | Description | Action |
|---|---|---|
| B1667 | Mirror Driver Up/Down Motor Stalled | Go to Pinpoint Test F . |
| B1668 | Mirror Driver Right/Left Motor Stalled | Go to Pinpoint Test F . |
| B1669 | Mirror Passenger Up/Down Motor Stalled | Go to Pinpoint Test F . |
| B1670 | Mirror Passenger Right/Left Motor Stalled | Go to Pinpoint Test F . |
| B1733 | Mirror Driver Vertical Switch Circuit Failure | Go to Pinpoint Test F . |
| B1737 | Mirror Driver Horizontal Switch Circuit Failure | Go to Pinpoint Test F . |
| B1741 | Mirror Passenger Vertical Switch Circuit Failure | Go to Pinpoint Test F . |
| B1745 | Mirror Passenger Horizontal Switch Circuit Failure | Go to Pinpoint Test F . |
| B2223 | Mirror Driver Drive Circuit Failure | Go to Pinpoint Test F . |
| B2224 | Mirror Passenger Drive Circuit Failure | Go to Pinpoint Test F . |
| B2312 | Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure | Go to Pinpoint Test F . |
| B2314 | Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Battery | Go to Pinpoint Test F . |
| B2316 | Mirror Passenger Vertical Feedback Potentiometer Circuit Failure | Go to Pinpoint Test F . |
| B2318 | Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery | Go to Pinpoint Test F . |
| B2320 | Mirror Driver Horizontal Feedback Potentiometer Circuit Failure | Go to Pinpoint Test F . |
| B2322 | Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Battery | Go to Pinpoint Test F . |
| B2324 | Mirror Driver Vertical Feedback Potentiometer Circuit Failure | Go to Pinpoint Test F . |
| B2326 | Mirror Driver Vertical Feedback Potentiometer Circuit Short to Battery | Go to Pinpoint Test F . |
| All other DTCs | REFER to the Master DTC Table in MULTIFUNCTION ELECTRONIC MODULES article. |
DRIVER SEAT MODULE (DSM) DTC TABLE
Symptom Chart
| Condition | Possible Sources | Action |
|---|---|---|
| Mirror vibrates/loose | Exterior mirror mounting nuts loose | TIGHTEN nuts to 9 N.m (80 lb-in). |
| NOTE: Compare the LH and RH exterior mirror glass to verify that the exterior mirror glass is loose. Mirror glass loose | PRESS the center of the exterior mirror glass up, down, left and right to make sure that the exterior mirror glass is seated correctly. If the exterior mirror glass is still loose, REMOVE the exterior mirror glass and INSPECT the exterior mirror backing plate for damage. If the exterior mirror backing plate is damaged, INSTALL a new exterior mirror glass. REFER to Exterior Mirror Glass . | |
| Aftermarket air deflector/stone shields | If possible, REMOVE aftermarket air deflector/stone shield, then ROAD TEST the vehicle. If concern is no longer present, ADVISE customer that aftermarket components were causing undesired vibration. | |
| Wind noise | Foam gasket between rear view mirror and door is missing or damaged | VERIFY gasket is present and in good condition. REPOSITION gasket or INSTALL a new foam gasket between rear view mirror and door frame if necessary. |
| Exterior mirror is not correctly fitted to the door | VERIFY that there are no gaps between the exterior mirror and the door. If necessary, LOOSEN the exterior mirror nuts and REPOSITION the exterior mirror. | |
| Exterior mirror cover | VERIFY that the exterior mirror cover is not loose or broken. INSTALL a new exterior mirror cover if necessary. REFER to Exterior Mirror Cover . | |
| The mirrors are inoperative - puddle lamps | Fuse Circuitry Exterior mirrors | REFER to EXTERIOR LIGHTING article. |
| The mirrors are inoperative - non-memory mirrors | Fuse Circuitry Exterior mirror control switch | Go to Pinpoint Test A . |
| A single mirror is inoperative - non-memory mirrors | Circuitry Exterior mirror control switch Exterior mirror motor Exterior mirror | Go to Pinpoint Test B . |
| A single mirror does not function with switch logic - non-memory mirrors | Circuitry Exterior mirror control switch Exterior mirror motor Exterior mirror | Go to Pinpoint Test C . |
| The auto-dimming mirror does not operate correctly | Obstructed rear-facing sensor Stickers, window decals, tags Non-OEM window tinting Obstructed forward-facing sensor Stickers, window decals, tags Non-OEM window tinting | If possible, REMOVE the obstruction. If the obstruction cannot be removed, go to Pinpoint Test D to TEST the auto-dimming mirror for correct function. |
| Light source near or inside of vehicle | None. Any light source the rear-facing sensor is exposed to can be considered glare. | |
| Vehicle inside garage or tunnel | None. Ambient light conditions are similar to nighttime. | |
| Fuse Circuitry Interior auto-dimming mirror | Go to Pinpoint Test D . | |
| The heated exterior mirror is inoperative | Fuse Circuitry Exterior mirror glass Exterior mirror | Go to Pinpoint Test E . |
| The memory mirror is inoperative | Fuse Circuitry Exterior mirror control switch Exterior mirror Driver seat module (DSM) | Go to Pinpoint Test F . |
| NOTE |
|---|
| Compare the LH and RH exterior mirror glass to verify that the exterior mirror glass is loose. |
Symptom Chart
Pinpoint Test A: The Mirrors are Inoperative - Non-Memory Mirrors
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Power Mirrors for schematic and connector information.
Pinpoint Test B: A Single Mirror is Inoperative - Non-Memory Mirrors
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Power Mirrors for schematic and connector information.
- B1 CHECK THE LH AND RH EXTERIOR MIRRORS Operate the exterior mirrors. Does the LH exterior mirror operate? YES : Go to B2 . NO : Go to B4 .
- B2 CHECK THE EXTERIOR MIRROR CONTROL SWITCH Disconnect: Exterior Mirror Control Switch C527 Carry out the Exterior Mirror Control Switch Component Test. Refer to appropriate COMPONENT TESTING article article. Did the exterior mirror control switch pass the component test? YES : Go to B3 . NO : INSTALL a new exterior mirror control switch. REFER to «Exterior Mirror Control Switch»(ref-293465-S06380477932008080700000) . TEST the system for normal operation.
- B3 CHECK CIRCUIT CPM23 (GY) FOR AN OPEN Key in OFF position. Disconnect: RH Exterior Mirror C625 Measure the resistance between exterior mirror control switch C527-6, circuit CPM23 (GY) harness side and RH exterior mirror C625-2, circuit CPM23 (GY) and the harness side. Is the resistance less than 5 ohms? YES : CHECK the RH exterior mirror jumper harness between the vehicle harness and the exterior mirror motor for open or shorted circuits and damaged or pushed-out pins. If the jumper harness is not OK, REPAIR the jumper harness. If the jumper harness cannot be repaired, INSTALL a new exterior mirror. REFER to «Exterior Mirror»(ref-293465-S27039024432008080700000) . If the jumper harness is OK, INSTALL a new exterior mirror motor. REFER to «Exterior Mirror Motor»(ref-293465-S04618099672008080700000) . TEST the system for normal operation. NO : REPAIR the circuit. TEST the system for normal operation.
- B4 CHECK THE EXTERIOR MIRROR CONTROL SWITCH Disconnect: Exterior Mirror Control Switch C527 Carry out the Exterior Mirror Control Switch Component Test. Refer to appropriate COMPONENT TESTING article. Did the exterior mirror control switch pass the component test? YES : Go to B5 . NO : INSTALL a new exterior mirror control switch. REFER to «Exterior Mirror Control Switch»(ref-293465-S06380477932008080700000) . TEST the system for normal operation.
- B5 CHECK CIRCUIT CPM23 (GY) FOR AN OPEN Key in OFF position. Disconnect: LH Exterior Mirror C516 Measure the resistance between exterior mirror control switch C527-6, circuit CPM23 (GY) harness side and LH exterior mirror C516-2, circuit CPM23 (GY) harness side. Is the resistance less than 5 ohms? YES : CHECK the LH exterior mirror jumper harness between the vehicle harness and the exterior mirror motor for open or shorted circuits and damaged or pushed-out pins. If the jumper harness is not OK, REPAIR the jumper harness. If the jumper harness cannot be repaired, INSTALL a new exterior mirror. REFER to «Exterior Mirror»(ref-293465-S27039024432008080700000) . If the jumper harness is OK, INSTALL a new exterior mirror motor. REFER to «Exterior Mirror Motor»(ref-293465-S04618099672008080700000) . TEST the system for normal operation. NO : REPAIR the circuit. TEST the system for normal operation.
Pinpoint Test C: A Single Mirror Does Not Function with Switch Logic - Non-Memory Mirrors
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Power Mirrors for schematic and connector information.
Pinpoint Test D: The Auto-Dimming Mirror Does Not Operate Correctly
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Power Mirrors for schematic and connector information.
Note. If the transmission range (TR) sensor is malfunctioning and the backup lamps are on all the time or do not turn on, the interior auto-dimming mirror will not darken or return to normal view.
Scheme 28
Scheme 29
Scheme 30
Scheme 31
Scheme 32
Scheme 33
Scheme 34
Scheme 35
Scheme 36
- D1 CHECK OPERATION OF THE BACKUP LAMPS Key in ON position. Move the shift control selector through the entire range. Do the backup lamps illuminate only in REVERSE? YES : Go to D2 . NO : REFER to «EXTERIOR LIGHTING»(ref-293485) article to diagnose the backup lamps.
- D2 VERIFY THE FORWARD AND REARWARD FACING SENSORS ARE NOT BLOCKED Visually verify the forward and rearward facing sensors are not blocked. Sources of blockage can include: stickers, window decals or tags. fold-down screens for TVs or DVD players. non-OEM window tinting. Were either of the sensors blocked? YES : If possible, REMOVE the blockage. TEST the system for normal operation. If it is not possible to remove the blockage, REVIEW the operation of the interior auto-dimming mirror with the customer. NO : Go to D3 .
- D3 CHECK OPERATION OF THE AUTO-DIMMING INTERIOR MIRROR - DAYLIGHT CONDITIONS Key in ON position. Use a bright lamp to illuminate the forward facing sensor and the rearward facing sensor. The mirror should adjust to a high reflectance mode (mirror will be clear). Did the mirror adjust to the high reflectance (clear) mode? YES : Go to D4 . NO : INSTALL a new interior auto-dimming mirror. REFER to «Auto-Dimming Interior Mirror»(ref-293465-S14871796182008080700000) . TEST the system for normal operation.
- D4 CHECK THE OPERATION OF THE AUTO-DIMMING MIRROR - NIGHTTIME CONDITIONS WITHOUT GLARE Key in ON position. NOTE: Covering the sensor with a finger or hand is not adequate. Simulate nighttime conditions without glare: cover the forward sensor with black electrical tape or other dark material. cover the rearward facing sensor. The mirror should adjust to the high reflectance mode. Did the mirror adjust to the high reflectance (clear) mode? YES : Go to D5 . NO : Go to D7 .
- D5 CHECK THE OPERATION OF THE AUTO-DIMMING MIRROR - NIGHTTIME CONDITIONS WITH GLARE Key in ON position. NOTE: Covering the sensor with a finger or hand is not adequate. Simulate nighttime conditions with glare: cover the forward sensor with black electrical tape or other dark material. illuminate the rearward facing sensor. The mirror should darken to a lower reflectance mode. Did the mirror darken to a lower reflectance (darker) mode? YES : Go to D6 . NO : Go to D7 .
- D6 CHECK THE OPERATION OF THE AUTO-DIMMING MIRROR - NIGHTTIME CONDITIONS WITH THE VEHICLE IN REVERSE Key in ON position. NOTE: Covering the sensor with a finger or hand is not adequate. Simulate nighttime conditions with glare: cover the forward sensor with black electrical tape or other dark material. illuminate the rearward facing sensor. Select REVERSE. Did the mirror adjust to a high reflectance (clear) mode? YES : The system is operating correctly at this time. REVIEW the operation of the interior auto-dimming interior mirror with the customer. NO : Go to D7 .
- D7 CHECK THE INTERIOR MIRROR FOR A MICROPHONE Check the interior mirror for a microphone. Is the interior mirror equipped with a microphone? YES : Go to D8 . NO : Go to D11 .
- D8 CHECK CIRCUIT CBP41 (BU) FOR VOLTAGE Disconnect: Interior Auto-Dimming Mirror C9012 Measure the voltage between interior auto-dimming mirror C9012-1, circuit CBP41 (BU) harness side and ground. Is the voltage greater than 10 volts? YES : Go to D9 . NO : VERIFY that smart junction box (SJB) fuse 41 (15A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
- D9 CHECK CIRCUIT GD133 (BK) FOR AN OPEN Key in OFF position. Measure the resistance between interior auto-dimming mirror C9012-10, circuit GD133 (BK) harness side and ground. Is the resistance less than 5 ohms? YES : Go to D10 . NO : REPAIR the circuit. TEST the system for normal operation.
- D10 CHECK CIRCUIT CLS10 (GN/BN) FOR VOLTAGE Key in ON position. Select REVERSE. Measure the voltage between interior auto-dimming mirror C9012-3, circuit CLS10 (GN/BN) harness side and ground. Is the voltage greater than 10 volts? YES : INSTALL a new interior auto-dimming mirror. REFER to «Auto-Dimming Interior Mirror»(ref-293465-S14871796182008080700000) . TEST the system for normal operation. NO : REPAIR the circuit. TEST the system for normal operation.
- D11 CHECK CIRCUIT CBP31 (BU/OG) FOR VOLTAGE Disconnect: Auto-Dimming Interior Mirror C911 Measure the voltage between interior auto-dimming mirror C911-1, circuit CBP31 (BU/OG) harness side and ground. Is the voltage greater than 10 volts? YES : Go to D12 . NO : VERIFY that SJB fuse 31 (15A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
- D12 CHECK CIRCUIT GD133 (BK) FOR AN OPEN Key in OFF position. Measure the resistance between interior auto-dimming mirror C911-2, circuit GD133 (BK) harness side and ground. Is the resistance less than 5 ohms? YES : Go to D13 . NO : REPAIR the circuit. TEST the system for normal operation.
- D13 CHECK CIRCUIT CLS10 (GN/BN) FOR VOLTAGE Key in ON position. Select REVERSE. Measure the voltage between interior auto-dimming mirror C911-3, circuit CLS10 (GN/BN) harness side and ground. Is the voltage greater than 10 volts? YES : INSTALL a new interior auto-dimming mirror. REFER to «Auto-Dimming Interior Mirror»(ref-293465-S14871796182008080700000) . TEST the system for normal operation. NO : REPAIR the circuit. TEST the system for normal operation.
Pinpoint Test E: The Heated Exterior Mirror is Inoperative
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Heated Windows for schematic and connector information.
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Power Mirrors for schematic and connector information.
Pinpoint Test F: The Memory Mirror is Inoperative
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Power Mirrors for schematic and connector information.