DPMS (Door Multiplex Control Unit) Input Test

  1. Turn the ignition switch to LOCK (0).
  1. NOTE: Be careful not to scratch the door trim.
  1. Disconnect the 37P connector (A) from the power window master switch (B).
  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 5 .
  1. 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, go to Step 6 .
    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    13
    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
    14
    LT GRN
    Ignition switch ON (II)
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box
    • An open in the wire
    25
    WHT [GRN]
    Under all conditions
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 3−4 (DR F/B) (60 A) fuse in the under-hood fuse/relay box
    • Blown No. 24 (20 A) fuse in the driver's under-dash fuse/relay box
    • An open in the wire
    32
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • An open in the wire
    37
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G502)
    • An open in the wire
    33
    BLU
    Under all conditions(disconnect power seat control unit connector A (40P))
    Check for continuity between the No. 33 terminal and power seat control unit connector A (40P) No. 39 terminal:There should be continuity.
    An open in the wire
    35
    PNK [BLK]
    Under all conditions(disconnect power seat control unit connector A (40P))
    Check for continuity between the No. 35 terminal and power seat control unit connector A (40P) No. 40 terminal:There should be continuity.
    An open in the wire
    4
    GRN
    Ignition switch ON (II)
    Connect the No. 14 and No. 4 terminals:The driving position memory switch indicator 2 should come on.
    • Faulty driving position memory switch
    • Faulty LED
    • Poor ground (G501)
    • An open in the wire
    6
    PUR
    Ignition switch ON (II)
    Connect the No. 14 and No. 6 terminals:The driving position memory switch indicator 1 should come on.
    • Faulty driving position memory switch
    • Faulty LED
    • Poor ground (G501)
    • An open in the wire
    26
    PNK
    Ignition switch ON (II)
    Connect the No. 14 and No. 26 terminals:The driving position memory switch lights should come on.
    • Faulty driving position memory switch
    • Faulty LED
    • Poor ground (G501)
    • An open in the wire

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    RHD model

  1. Reconnect the connector to the power window master switch, and 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, the door multiplex control unit must be faulty; replace the power window master switch.
    NOTE: After replacing the power window master switch, reset the power window control unit.
    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    16
    RED
    Ignition switch ON (II), position 2 switch pressed
    Measure the voltage to ground: There should be less than 1 V.
    • Poor ground (G501)
    • Faulty driving position memory switch
    • An open in the wire
    Ignition switch ON (II), position 2 switch released
    Measure the voltage to ground: There should be about 5 V.
    • Faulty driving position memory switch
    • A short to ground in the wire
    17
    GRY
    Ignition switch ON (II), position 1 switch pressed
    Measure the voltage to ground: There should be less than 1 V.
    • Poor ground (G501)
    • Faulty driving position memory switch
    • An open in the wire
    Ignition switch ON (II), position 1 switch released
    Measure the voltage to ground: There should be about 5 V.
    • Faulty driving position memory switch
    • A short to ground in the wire
    19
    YEL
    Ignition switch ON (II), SET switch pressed
    Measure the voltage to ground: There should be less than 1 V.
    • Poor ground (G501)
    • Faulty driving position memory switch
    • An open in the wire
    Ignition switch ON (II), SET switch released
    Measure the voltage to ground: There should be about 5 V.
    • Faulty driving position memory switch
    • A short to ground in the wire