MICS (Driver's MICU, Passenger's MICU, and Door Multiplex Control Unit) Input Test
Passenger's MICU
  1. Turn the ignition switch to LOCK (0), and remove the passenger's side kick panel.
  1. Disconnect passenger's under-dash fuse/relay box connectors A and E.
    NOTE: All connector views are wire side of female terminals.
  1. 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 9 .
  1. With the connectors still disconnected, make these input tests at the connectors.
    • 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 .
    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    A36
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G505)
    • An open in the wire
    A37
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G505)
    • An open in the wire
    E15
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G201) [G302]
    • An open in the wire
    E16
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G201) [G302]
    • An open in the wire

    [ ]:
    RHD model

  1. With the connectors still disconnected, make these input tests at the connectors.
    • 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 11 .
    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    A14
    WHT
    Under all conditions
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 15 (10 A) fuse in the under-hood fuse/relay box
    • Faulty driver's under-dash fuse/relay box (LHD model)
    • Faulty passenger's under-dash fuse/relay box (RHD model)
    • An open in the wire
    [E3]
    WHT
    Under all conditions
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 15 (10 A) fuse in the under-hood fuse/relay box
    • An open in the wire
    A35
    BRN
    Ignition switch ON (II)
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 5 (7.5 A) fuse in the driver's under-dash fuse/relay box
    • Faulty driver's under-dash fuse/relay box
    • An open in the wire

    [ ]:
    RHD model