Automatic Dimming Inside Mirror
Test1. Disconnect the 7P connector (A) from the automatic dimming inside mirror (B).
2. Check for continuity between No. 2 terminal and body ground.
- If there is continuity, go to step 4.
- If there is no continuity, check for:
- An open in the wire.
- Poor ground (G503).
3. Measure the voltage between No. 1 terminal and body ground with the ignition switch ON (II).
- If there is battery voltage, go to step 4.
- If there is no voltage, check for:
- Blown No. 21 (7.5 A) fuse in the driver's under-dash fuse/relay box.
- An open in the wire.
4. Measure the voltage between No. 3 terminal and body ground with the ignition switch turned ON (II) and transmission range switch (A/T) in R position or back-up light switch (M/T) in reverse position.
- If there is battery voltage, replace the mirror assembly.
- If there is no voltage, check for:
- An open in the wire.
- Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box.
- Faulty Multiplex Integrated Control System.
- Faulty transmission range switch (A/T) or backup light switch (M/T).