Automatic Dimming Mirrors

1. Press the engine start/stop button to select the 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:
  • Blown No. B22 (7.5 A) fuse in the under-dash fuse/relay box.
  • An open or high resistance in the wire.

Courtesy of HONDA, U.S.A., INC.

3. Measure the voltage between terminal No. 6 and body ground.

• If there is less than 0.2 V, go to step 4.
• If there is voltage more than 0.2 V, check for:
  • An open or high resistance in the ground wire.
  • Poor ground (G504).

4. Measure the voltage between terminal No. 5 and body ground with the shift lever in R (reverse) position.

• If there is battery voltage, replace the rearview mirror .
• If there is no voltage, check for:
  • An open or high resistance in the wire.
  • Faulty under-dash fuse/relay box.
  • Faulty transmission range switch (A/T).
  • Faulty back-up light switch (M/T).