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Home >> Acura >> 2012 >> MDX >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Interior Lights >> Rear Individual Map Light Input Test/Replacement

Rear Individual Map Light Input Test/Replacement

  1. Carefully pry off the lens (A) with a small screwdriver.
    Fig 1: Identifying Rear Individual Map Light
    G08055363Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Remove the two mounting bolts.
  3. Disconnect the 10P connector (B) from the rear individual map light (C).
  4. 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 5.
  5. With the connector still disconnected, do the following input tests:
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, go to step 6.
    Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
    5 LT GRN Disconnect under-dash fuse/relay box connector X (39P) Check for continuity between terminal No. 5 and under-dash fuse/relay box connector X (39P) connector terminal No. 9: There should be continuity. An open or high resistance in the wire
    6 ORN Disconnect under-dash fuse/relay box connector Q (11P) Check for continuity between terminal No. 6 and under-dash fuse/relay box connector Q (20P) connector terminal No. 11: There should be continuity. An open or high resistance in the wire
    8 GRN Disconnect the roof console 20P connector Check for continuity between terminal No. 8 and roof console 20P connector terminal No. 8: There should be continuity. An open or high resistance in the wire
    9 YEL Disconnect the roof console 20P connector Check for continuity between terminal No. 9 and roof console 20P connector terminal No. 9: There should be continuity. An open or high resistance in the wire
    2 RED Disconnect gauge control module connector B (24P) Check for continuity between terminal No. 2 and gauge control module connector B (24P) terminal No. 2: There should be continuity. An open or high resistance in the wire
  6. Reconnect the connector to the rear individual map light, and do the following input tests:
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, the rear individual map light must be faulty; replace it.
    Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
    4 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V.
    • Poor ground (G601) or an open in the ground wire
    • An open or high resistance in the wire
    3 WHT Under all conditions Measure the voltage to ground: There should be battery voltage.
    • Blown No. 6 (7.5 A) fuse in the under-dash fuse/relay box
    • Faulty under-dash fuse/relay box
    • An open or high resistance in the wire
    1 LT BLU Combination light switch (PARKING LIGHT position) ON Measure the voltage to ground: There should be battery voltage.
    • Blown No. 22 (7.5 A) fuse in the under-hood fuse/relay box
    • Faulty under-hood fuse/relay box
    • Faulty interior light relay
    • An open or high resistance in the wire