Wipers/Washers (Driver's and Passenger's MICU) 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, C, E, and H.
    NOTE:
    • All connector views are wire side of female terminals.
    • The illustration shows LHD models and the gray portion shows the lock lever. The lock lever for RHD models is shown as the dashed line.
  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 10 .
  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
    A36
    BLK
    Under all conditions
    Check for continuity to ground:
    There should be continuity.
    • Poor ground (G505)
    • An open in the wire
    A37
    E15
    BLK
    Under all conditions
    Check for continuity to ground:
    There should be continuity.
    • Poor ground (G201) [G302]
    • An open in the wire
    E16
    H21
    BLK
    Under all conditions
    Check for continuity to ground:
    There should be continuity.
    • Poor ground (G651)
    • An open in the wire
    A31
    PNK
    Ignition switch ON (II)
    Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 3 (15 A) fuse in the driver's under-dash fuse/relay box
    • Faulty driver's under-dash 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
    A25 *
    ORN
    Under all conditions
    Attach to ground:
    The headlight washer motor should run.
    • Blown No. 11 (30 A) fuse in the under-hood fuse/relay box
    • Poor ground (G201)
    • Faulty headlight washer motor
    • Faulty headlight washer motor relay
    C3 *
    PUR
    Headlight washer switch pushed
    Check for continuity to ground:
    There should be continuity.
    • Faulty headlight washer switch
    • Poor ground (G501)
    • An open in the wire
    Headlight washer switch released
    Check for continuity to ground:
    There should be no continuity.
    • Faulty headlight washer switch
    • A short to ground in the wire

    *:
    With headlight washer

    [ ]:
    RHD model

  1. Reconnect the connectors to the passenger's under-dash fuse/relay box, and make these input test at the connector.
    • If the test indicates a problem, find and correct the cause, then recheck the system.
    • If the input test proves OK, go to Step 12 .
    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    E9
    GRN[LT BLU]
    Ignition switch ON (II)
    Connect the A31 and E9 terminals with a jumper wire:
    The washer motor should run.
    • Poor ground (G651)
    • Faulty washer motor
    • Faulty passenger's under-dash fuse/relay box
    • An open in the wire

    [ ]:
    RHD model

  1. If multiple failures are found on more than one control unit, replace the driver's under-dash fuse/relay box (includes the driver's MICU). If input failures are related to a particular control unit, replace the control unit.