B1D2B
B1D1F,B1D2B - MIRROR VERTICAL MOTOR CONTROL CIRCUIT LOW - MEMORY MIRROR MODULEB1D1F, B1D2B - Mirror Vertical Motor Control Circuit Low - Memory Mirror Module:
WHEN MONITORED
Continuously.
SET CONDITION
When the Memory Mirror Module senses a value below the tolerance of the mirror motor on the Mirror Vertical Motor Control circuit for over 10 ms, this code will set.
NOTE: This test covers both the Driver and Passenger code depending on the side the code appeared in.
POSSIBLE CAUSES
- (P71) or (P72) mirror vertical driver circuit short to ground
- (P71) or (P72) mirror vertical driver circuit shorted to the (C910) or (C917) mirror
- Heater ground circuit.
- Mirror shorted
- Memory mirror module
Diagnostic Test
1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC's
Operate the Mirror Switch in all directions several times. Cycle the ignition from on to off three times.
Turn the ignition on.
With the scan tool, read DTC's.
Q: Does the scan tool display B1D1F or B1D2B-MIRROR VERTICAL MOTOR CONTROL CIRCUIT LOW?
YES: Go To 2
NO: The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
2. TEST FOR A SHORTED MIRROR
Disconnect the appropriate mirror connector.
With the scan tool, erase DTC's.
Operate the Mirror Switch in all directions several times.
Cycle the ignition from on to off three times.
Turn the ignition on.
With the scan tool, read DTC's.
Q: Does the scan tool display B1D1F or B1D2B-MIRROR VERTICAL MOTOR CONTROL CIRCUIT LOW?
NO: Replace the Mirror. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
YES: Go to 3
3. TEST THE (P71) OR (P72) MIRROR VERTICAL MOTOR DRIVER WIRE FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the appropriate Memory Mirror Module connector.
Measure the resistance between ground and the (P71) or (P72) Mirror Vertical Motor Driver circuit.
Q: Is the resistance below 5000.0 ohms?
YES: Repair the (P71) or (P72) Mirror Vertical Motor Driver circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go to 4
4. TEST THE (P71) OR (P72) MIRROR VERTICAL MOTOR DRIVER CIRCUIT SHORTED TO THE (C910) OR (C917) MIRROR HEATER GROUND CIRCUIT.
Measure the resistance between the (P71) or (P72) Mirror Vertical Motor Driver circuit and the (C910) or (C917) Mirror Heater Ground circuit.
Q: Is the resistance below 5000.0 ohms?
YES: Repair the (P71) or (P72) Mirror Vertical Motor Driver circuit for a short to the (C910) or (C917) Mirror Heater Ground Circuit. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace the appropriate Memory Mirror Module. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test