Pinpoint Test B: A Single Mirror Is Inoperative - Non-Memory Mirrors

Rear View Mirrors - Exterior

Pinpoint Test B: A Single Mirror is Inoperative - Non-Memory Mirrors

Refer to Wiring Diagram Set 124, Power Mirrors for schematic and connector information Electrical Diagrams.

Normal Operation

Under normal operation, the exterior mirror control switch uses a common circuit for both exterior mirror down/up and left/right movement.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- Exterior mirror control switch

- Exterior mirror motor

- Exterior mirror

PINPOINT TEST B : A SINGLE MIRROR IS INOPERATIVE - NON-MEMORY MIRRORS

NOTICE: Use the correct probe adapter(s) from the Flex Probe Kit when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

B1 CHECK THE EXTERIOR MIRROR CONTROL SWITCH

- Ignition OFF.

- Disconnect: Exterior Mirror Control Switch C527.

- Carry out the Exterior Mirror Control Switch component test.

Did the exterior mirror control switch pass the component test?

Yes
GO to B2.

No
INSTALL a new exterior mirror control switch. REFER to Exterior Mirror Control Switch . TEST the system for normal operation.

B2 CHECK THE EXTERIOR REAR VIEW MIRROR COMMON CIRCUIT FOR AN OPEN

- Disconnect: RH Exterior Mirror C622 or LH Exterior Mirror C.

- Measure the resistance:
- for LH inoperative mirror, between C516-1, circuit CPM23 (GY), harness side and exterior mirror control switch C527-6, circuit CPM23 (GY), harness side.

- for RH inoperative mirror, between C622-1, circuit CPM23 (GY), harness side and exterior mirror control switch C527-6, circuit CPM23 (GY), harness side.







Is the resistance less than 5 ohms?

Yes
CHECK the inoperative exterior mirror jumper harness between the vehicle harness and the exterior mirror motor for open 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 . If the jumper harness is OK, INSTALL a new exterior mirror motor. REFER to Exterior Mirror Motor . TEST the system for normal operation.

No
REPAIR the circuit. TEST the system for normal operation.