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Home >> Acura >> 2011 >> RL >> Repair and Diagnosis >> Body & Frame >> Seats >> Driver Position Memory System (DPMS) >> Power Mirror Circuit Input Test >> MICU >> Driver's MPCS Unit
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Driver's MPCS Unit

  1. 6. Turn the ignition switch to LOCK (0), and remove the driver's door panel (see FRONT DOOR PANEL REMOVAL/INSTALLATION ).
  2. 7. Disconnect driver's MPCS unit connector A (40P).
    Fig 1: Disconnecting Driver's MPCS Unit Connector (40P)
    G07363716Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. 8. Inspect the connector and socket terminal 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 9.
  4. 9. 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 10.
    TEST CONDITION AND WIRE REFERENCE CHART

    Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
    A5(1) BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V.
    • Poor ground(G601)
    • An open or high resistance in the ground wire
    A7(1) WHT Under all conditions Measure the voltage to ground: There should be battery voltage.
    • Blown No. 15 (40 A) fuse in the under-hood fuse/relay box
    • Blown No. 7 (10 A) fuse in the driver's under-dash fuse/relay box
    • An open or high resistance in the wire
    A8 GRY Under all conditions Check for continuity between the terminal A8 and front passenger's MPCS unit connector A (28P) terminal No. 4: There should be continuity.
    • Faulty driver's under-dash fuse/relay box
    • Faulty passenger's under-dash fuse/relay box
    • An open or high resistance in the wire
    A16 ORN Under all conditions Connect the terminals A7 and A16, and terminals A5 and A38: The left power mirror moves UP.
    • Faulty left power mirror actuator
    • An open or high resistance in the wire
    A38 YEL
    A17 GRN Under all conditions Connect the terminals A7 and A17, and terminals A5 and A38: The left power mirror swings RIGHT.
    • Faulty left power mirror actuator
    • An open or high resistance in the wire
    A38 YEL
    (1) Reconnect the connector to the driver's MPCS unit.
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