PINPOINT TEST D : The Memory Mirror Is Inoperative: Notes
Diagnostic Overview
The Memory Mirror Is Inoperative
Refer to Power Mirrors for schematic and connector information.
Normal Operation and Fault Conditions
The accessory delay relay is located inside the BCM and supplies voltage to the master window control switch when the BCM energizes the relay by grounding the relay coil. The exterior mirror control switch is integral to the master window control switch and receives power whenever the master window control switch is powered by the accessory delay relay. REFER to Glass, Frames and Mechanisms , Delayed Accessory Power. The exterior mirror control switch sends input signals to the DSM upon driver request for mirror operation.
Refer to Rear View Mirrors - Exterior, Memory .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1667 | Mirror Driver Up/Down Motor Stalled | During self-test, the DSM attempts to operate the exterior mirror motor and uses the motor's position sensor to monitor movement. If no motor movement is sensed, the DSM disables the output, which operates the motor after 250 milliseconds and the DTC is set. The DSM will retry motor operation on the next activation of the exterior mirror control switch. |
| B1669 | Mirror Passenger Up/Down Motor Stalled | |
| B1668 | Mirror Driver Right/Left Motor Stalled | During self-test, the DSM attempts to operate the exterior mirror motor and uses the motor's position sensor to monitor movement. If no motor movement is sensed, the DSM disables the output, which operates the motor after 250 milliseconds and the DTC is set. The DSM will retry motor operation on the next activation of the exterior mirror control switch. |
| B1670 | Mirror Passenger Right/Left Motor Stalled | |
| B1733 | Mirror Driver Vertical Switch Circuit Failure | During self-test, if a short to ground or short to battery fault is sensed on the switch circuit, the DTC is set. During normal operation, if a fault is sensed on the circuit for greater than 2 minutes, the DTC is set as continuous. With the DTC set, any input signal on the circuit is ignored. |
| B1741 | Mirror Passenger Vertical Switch Circuit Failure | |
| B1737 | Mirror Driver Horizontal Switch Circuit Failure | During self-test, if a short to ground or short to battery fault is sensed on the switch circuit, the DTC is set. During normal operation, if a fault is sensed on the circuit for greater than 2 minutes, the DTC is set as continuous. With the DTC set, any input signal on the circuit is ignored. |
| B1745 | Mirror Passenger Horizontal Switch Circuit Failure | |
| B2223 | Mirror Driver Drive Circuit Failure | These DTCs set when the DSM detects a short to ground or battery on either a driver or passenger motor drive circuit. |
| B2224 | Mirror Passenger Drive Circuit Failure | |
| B2312 | Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure | These DTCs set when the DSM detects an open or short to ground on either a driver or passenger mirror horizontal position feedback circuit. When the DTC is set, the DSM operates the motor for 1 second then movement stops. |
| B2320 | Mirror Driver Horizontal Feedback Potentiometer Circuit Failure | |
| B2314 | Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Battery | These DTCs set when the DSM detects a short to battery on either a driver or passenger mirror horizontal position feedback circuit. When DTC is set, the DSM operates the motor for 1 second then movement stops. |
| B2322 | Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Battery | |
| B2316 | Mirror Passenger Vertical Feedback Potentiometer Circuit Failure | These DTCs set when the DSM detects an open or short to ground on either a driver or passenger mirror vertical position feedback circuit. When DTC is set, the DSM operates the motor for 1 second then movement stops. |
| B2324 | Mirror Driver Vertical Feedback Potentiometer Circuit Failure | |
| B2318 | Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery | These DTCs set when the DSM detects a short to battery on either a driver or passenger mirror vertical position feedback circuit. When DTC is set, the DSM operates the motor for 1 second then movement stops. |
| B2326 | Mirror Driver Vertical Feedback Potentiometer Circuit Short to Battery |
Visual Inspection and Diagnostic Pre-checks
- Inspect BCM fuses 7 (7.5A), 23 (30A) and 32 (15A).
- Inspect the exterior mirror control switch.
- Inspect the exterior mirror.