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Home >> Acura >> 2012 >> MDX >> Repair and Diagnosis >> Body & Frame >> Mirrors >> Rearview Mirror With Rearview Camera Display >> Rearview Mirror With Rearview Camera Display Input Test/Replacement

Rearview Mirror With Rearview Camera Display Input Test/Replacement

NOTE: The normal operating temperature range of the 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.
  3. Turn the ignition switch to LOCK (0).
  4. Remove the roof console ROOF CONSOLE INPUT TEST/REPLACEMENT ).
  5. Disconnect the 12P connector (B) from the roof wire harness (C).
    Fig 1: Identifying Mirror Indicator, 12P Connector And Roof Wire Harness
    G08055522Courtesy of AMERICAN HONDA MOTOR CO., INC.
  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 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 12, 5, and 6. Make sure the connector is disconnected while testing terminals 3, 8, 2, 1, and 7.
    • 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 VOICE CONTROL SWITCH REPLACEMENT ). If the symptom is still present, the rearview mirror is faulty; replace it.
Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
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.
  • An open or high resistance in the wire
  • Poor ground (G601) or an open in the ground wire
  • Faulty under-dash fuse/relay box
5 PNK Ignition switch ON (II) Measure the voltage between terminal No. 5 and body ground: There should be battery voltage.
  • An open or high resistance in the wire
  • Faulty under-dash fuse/relay box
  • Faulty IG2 cut relay
  • Blown No. 30 (10 A) fuse in the under-dash fuse/relay box
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.
  • An open or high resistance in the wire
  • Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box
  • Faulty under-dash fuse/relay box
  • Faulty or improperly adjusted transmission range switch
  • Poor ground (G101) or an open in the ground wire
3 WHT Disconnect the rearview camera 6P connector Check for continuity between terminal No. 3 and rearview camera 6P connector terminal No. 6: 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 GRN Disconnect the rearview camera 6P connector Check for continuity between terminal No. 8 and rearview camera 6P connector terminal No. 4: 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 RED Disconnect the rearview camera 6P connector Check for continuity between terminal No. 2 and rearview camera 6P connector terminal No. 5: 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 BLK Disconnect the rearview camera 6P connector Check for continuity between terminal No. 1 and rearview camera 6P connector terminal No. 3: 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 6P connector Check for continuity between terminal No. 7 and rearview camera 6P connector terminal No. 2: There should be continuity. An open or high resistance in the wire