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B1D25

B1D25,B1D31-MIRROR HORIZONTAL MOTOR CONTROL CIRCUIT OPEN - MEMORY MIRROR MODULE

B1D25, B1D31 - Mirror Motor Common Control Circuit Open - Memory Mirror Module:






WHEN MONITORED
Continuously

SET CONDITION
When the Memory Mirror Module senses an open condition on the Mirror Horizontal Motor Driver circuit during a mirror operation, for over 10ms., this code will set.

NOTE: This test covers both the Driver and Passenger code depending on the side the code appeared in.

POSSIBLE CAUSES
- (P75) Or (P74) Mirror horizontal motor driver circuit open
- Mirror open
- 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 3 times.
Turn the ignition on.
With the scan tool, read DTC's.

Q: Does the scan tool display B1D25 or B1D31-MIRROR HORIZONTAL MOTOR CONTROL CIRCUIT OPEN?

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 AN OPEN MIRROR




Disconnect the appropriate mirror connector.
Connect a test light between the (P73) or (P70) Mirror Common Driver circuit and the (P75) or (P74) Mirror Horizontal Driver circuit.
Operate the mirror switch Left and Right several times.

Q: Does the test light illuminate when the switch is operated?

YES: Replace the Mirror. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go to 3

3. TEST THE (P75) OR (P74) MIRROR HORIZONTAL MOTOR DRIVER WIRE FOR AN OPEN




Turn the ignition off.
Disconnect the appropriate Memory Mirror Module connector.
Measure the resistance of the (P75) or (P74) Mirror Horizontal Motor Driver circuit between the mirror connector and the module connector.

Q: Is the resistance below 2.0 ohms?

NO: Repair the (P75) or (P74) Mirror Horizontal Motor Driver circuit for an open. 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