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Home >> Acura >> 2003 >> MDX Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Keyless/Power Door Locks/Security System >> Keyless Receiver Unit Input Test
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Keyless Receiver Unit Input Test

  1. Remove the glove box (see GLOVE BOX REMOVAL/INSTALLATION ).
  2. Disconnect the 7P connector (A) from the keyless receiver unit (B).
    Fig 1: Disconnecting 7P Connector From Keyless Receiver Unit
    G03642366Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. 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 are OK, go to step 4.
  4. With the connector still disconnected, make these input tests at the connector.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, replace the keyless receiver unit.
      KEYLESS RECEIVER UNIT INPUT TEST

      Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
      2 PNK/BLK Under all conditions Check for continuity between the No. 2 terminal and driver's multiplex control unit B19 terminal:
      There should be continuity.
      There should be no continuity to ground.
      • An open in the wire
      • Short to ground
      3 GRN/BLU Under all conditions Check for continuity between the No. 3 terminal and driver's multiplex control unit B18 terminal:
      There should be continuity.
      There should be no continuity to ground.
      • An open in the wire
      • Short to ground
      6 LT BLU Under all conditions Check for continuity between the No. 6 terminal and driver's multiplex control unit B21 terminal:
      There should be continuity.
      There should be no continuity to ground.
      • An open in the wire
      • Short to ground
      1 BLK Under all conditions Check for continuity to ground:
      There should be continuity.
      • Poor ground (G503)
      • An open in the wire
      5 YEL Ignition switch ON (II) Check for voltage to ground:
      There should be battery voltage.
      • Blown No. 9 (10 A) fuse in the driver's under-dash fuse/relay box
      • An open in the wire
      7 WHT/YEL Under all conditions Check for voltage to ground:
      There should be battery voltage.
      • Blown No. 13 (7.5 A) fuse in the passenger's under-dash fuse/relay box
      • An open in the wire