Honda HR-V: Automatic Dimming Mirrors Test

1. Turn the vehicle to the OFF (LOCK) mode

2. Disconnect the automatic dimming inside mirror 7P connector.

3. Check for continuity 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 (G401).

4. Turn the vehicle to the ON mode

5. Measure the voltage between terminal No. 7 and body ground.

• If there is battery voltage, go to step 6.
• If there is no voltage, check for:
  • Blown No. C27 (7.5 A) fuse in the under-dash fuse/relay box.
  • An open or high resistance in the wire.

6. 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.
• If there is no voltage, check for:
  • Faulty under-dash fuse/relay box.
  • Faulty transmission range switch.
  • An open or high resistance in the wire.

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