AUTOMATIC DIMMING MIRRORS (WITHOUT Auto High-Beam) (2016 2017 2018)
1. Turn the vehicle to ON mode.
2. Measure the voltage between terminal No. 7 and body ground.
- If there is battery voltage, go to step 3.
- If there is no voltage, check for:
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- Blown No. C23 (7.5 A) fuse in the under-dash fuse/relay box.
- An open or high resistance in the wire.
3. Measure the voltage between terminal No. 6 and body ground.
- If there is continuity, go to step 4.
- If there is no continuity, check for:
-
- An open or high resistance in the ground wire.
- Poor ground (G501).
4. Measure the voltage between terminal No. 5 and body ground with the transmission range switch in R position.
- If there is battery voltage, replace the rearview mirror. Go to: Rearview Mirror - Removal and Installation .
- If there is no voltage, check for:
-
- Blown No. C29 (7.5 A) fuse in the under-dash fuse/relay box.
- An open or high resistance in the wire.
- Faulty under-dash fuse/relay box
- Faulty TCM (9-speed A/T)
- Faulty transmission range switch (6-speed A/T)