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Rearview Mirror With Rearview Camera Display Input Test

NOTE: The normal operating temperature range of rearview mirror with rearview camera display is -22°F to 176°F (-30°C to 80°C). Allow the inside temperature of the vehicle to stabilize within the normal operating range before testing.
  1. Turn the ignition switch to ON (II).
  2. Check the auto dimming inside mirror indicator (A). If the indicator flashes 2 times, and then turns on, there is a malfunction in the mirror. Replace it.
    Fig 1: Identifying Auto Dimming Inside Mirror Indicator Connector Terminals
    G08076927Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Turn the ignition switch to LOCK (0).
  4. Remove the roof console (see ROOF CONSOLE INPUT TEST/REPLACEMENT ).
  5. Disconnect the 12P connector (B) from the roof wire harness (C).
  6. Inspect the connector and socket terminals to be sure they are all making good contact.
    • If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
    • If the terminals look OK, go to step 7.
  7. Remove the tailgate lower trim panel (see TRIM REMOVAL/INSTALLATION - TAILGATE AREA ).
  8. With the connector still disconnected, do the following input tests.
    NOTE: Make sure the connector is connected while testing terminals No. 5, No. 6, and No. 12. Make sure the connector is disconnected while testing terminals No. 1, No. 2, No. 3, No. 7, and No. 8.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If the input tests prove OK. Substitute and connect a known-good rearview camera and check the monitor image in reverse. If the symptom is gone, the rearview camera is faulty; replace it (see REARVIEW CAMERA REMOVAL/INSTALLATION ). If the symptom is still present, the rearview mirror is faulty; replace it (see REARVIEW MIRROR REPLACEMENT ).
    Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
    5 LT GRN Ignition switch ON (II) Measure the voltage between terminal No. 5 and body ground: There should be battery voltage.
    • Blown No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box
    • Faulty driver's under-dash fuse/relay box
    • Faulty IG2 cut relay
    • An open or high resistance in the wire
    6 BRN Ignition switch ON (II) and the transmission range switch in R position Measure the voltage between terminal No. 6 and body ground: There should be battery voltage.
    • Blown No. 12 (7.5 A) fuse in the under-dash fuse/relay box
    • Faulty driver's under-dash fuse/relay box
    • Faulty or improperly adjusted transmission range switch
    • Poor ground (G101) or an open in the ground wire
    • An open or high resistance in the wire
    3 GRN Disconnect the rearview camera 12P connector Check for continuity between terminal No. 3 and rearview camera 12P connector terminal No. 12: There should be continuity. An open or high resistance in the wire
    Check for continuity between terminal No. 3 and body ground: There should be no continuity. A short to ground in the wire
    8 RED Disconnect the rearview camera 12P connector Check for continuity between terminal No. 8 and rearview camera 12P connector terminal No. 11: There should be continuity. An open or high resistance in the wire
    Check for continuity between terminal No. 8 and body ground: There should be no continuity. A short to ground in the wire
    2 BLK Disconnect the rearview camera 12P connector Check for continuity between terminal No. 2 and rearview camera 12P connector terminal No. 10: There should be continuity. An open or high resistance in the wire
    Check for continuity between terminal No. 2 and body ground: There should be no continuity. A short to ground in the wire
    1 WHT Disconnect the rearview camera 12P connector Check for continuity between terminal No. 1 and rearview camera 12P connector terminal No. 9: There should be continuity. An open or high resistance in the wire
    Check for continuity between terminal No. 1 and body ground: There should be no continuity. A short to ground in the wire
    7 GRY Disconnect the rearview camera 12P connector Check for continuity between terminal No. 7 and rearview camera 12P connector terminal No. 8: There should be continuity. An open or high resistance in the wire
    12 BLK In all ignition switch positions Measure the voltage between terminal No. 12 and body ground: There should be less than 0.2 V.
    • Poor ground (G401)
    • An open or high resistance in the ground wire
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