( TF09E8PJ46643441951FCAT00 )
Keyless/Power Door Locks/Security System (MICU) Input Test

NOTE:
  • Before testing, make sure the turn signal/hazard warning lights work properly.
  • Before testing, check the No. 1 (10 A), No. 20 (15 A), No. 22 (7.5 A), No. 27 (30 A), No. 35 (10 A), No. 36 (15 A), No. 49 (15 A), No. 50 (15 A), and No. 60 (50 A) fuses in the under-dash fuse/relay box.
  • There are two pairs of fuses in the same circuit (No. 35 and No. 49 fuses, No. 36 and No. 50 fuses). If one fuse is brown, make sure to check another fuse in the same circuit. If necessary, replace the damaged fuse(s).
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect under-dash fuse/relay box connectors A, B, C, E, F, K, M, N, Q, and W.
    NOTE:
    • All connector views are shown from wire side of female terminals.
    • The illustration shows the RHD model and the black portion shows the lock lever. The lock lever for LHD model is shown as the dashed lines.
  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 connectors still disconnected, make these input tests at the connectors.
    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    K10
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G502)
    • An open in the wire
    Q9
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G502)
    • An open in the wire
    M16
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • An open in the wire
    N2
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • An open in the wire
    F1
    YEL
    Connect the battery positive terminal to F1 (F2) terminal, and F2 (F1) terminal to body ground
    Check actuator operation: The driver's door lock actuator should unlock (or lock).
    • Faulty driver's door lock actuator
    • An open in the wire
    F2
    PNK
    K5
    LT BLU
    Connect the battery positive terminal to K5 (K6) terminal, and K6 (K5) terminal to body ground
    Check actuator operation: The front passenger's door lock actuator should lock (or unlock).
    • Faulty front passenger's door lock actuator
    • An open in the wire
    K6
    YEL
    C35
    PNK
    Connect the battery positive terminal to C35 (C36) terminal, and C36 (C35) terminal to body ground
    Check actuator operation: The right [left] rear door lock actuator and the fuel lid lock actuator should lock (or unlock).
    • Faulty right [left] rear door lock actuator
    • Faulty fuel lid lock actuator
    • An open in the wire
    C36
    YEL
    C47
    LT BLU
    Connect the battery positive terminal to C47 (C48) terminal, and C48 (C47) terminal to body ground
    Check actuator operation: The left [right] rear door lock actuator and the tailgate lock actuator should lock (or unlock).
    • Faulty left [right] rear door lock actuator
    • Faulty tailgate lock actuator
    • An open in the wire
    C48
    YEL
    A13 *1
    GRN
    Under all conditions
    Connect A13 terminal and B23 terminal with a jumper wire: The horn should sound
    • Faulty security horn
    • An open in the wire
    C25 *2
    LT GRN
    Disconnect the alarm control siren 6P connector
    Check for continuity between C25 and No. 3 terminal of alarm control siren 6P connector: There should be continuity.
    An open in the wire
    M23 *1
    GRN
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G503)
    • Faulty audio unit
    • An open in the wire
    B23
    WHT
    Under all conditions
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 3 (30 A *3 /20 A *4 ) fuse in the battery terminal fuse box
    • An open in the wire
    W1
    YEL
    Ignition switch ON (II)
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 1 (100 A) fuse in the battery terminal fuse box
    • Blown No. 60 (IGN) (50 A) fuse in the under-dash fuse/relay box
    • Faulty ignition switch
    • An open in the wire

    [ ]:
    LHD model

    *1:
    With security
    *2:
    With ultrasonic
    *3:
    With trailer lighting connector
    *4:
    Without trailer lighting connector

    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    C33
    BLU
    Driver's door open
    Check for continuity to ground: There should be continuity.
    • Faulty driver's door switch
    • An open in the wire
    Driver's door closed
    Check for continuity to ground: There should be no continuity.
    • Faulty driver's door switch
    • A short to ground in the wire
    C32
    LT GRN
    Front passenger's door open
    Check for continuity to ground: There should be continuity.
    • Faulty front passenger's door switch
    • An open in the wire
    Front passenger's door closed
    Check for continuity to ground: There should be no continuity.
    • Faulty front passenger's door switch
    • A short to ground in the wire
    C32 *2
    LT GRN
    Left rear door or right rear door open
    Check for continuity to ground: There should be continuity.
    • Faulty left rear door switch
    • Faulty right rear door switch
    • An open in the wire
    Left rear door, and right rear door closed
    Check for continuity to ground: There should be no continuity.
    • Faulty left rear door switch
    • Faulty right rear door switch
    • A short to ground in the wire
    C26 *1
    PNK
    Right rear door open
    Check for continuity to ground: There should be continuity.
    • Faulty right rear door switch
    • An open in the wire
    Right rear door closed
    Check for continuity to ground: There should be no continuity.
    • Faulty right rear door switch
    • A short to ground in the wire
    C40 *1
    GRN
    Left rear door open
    Check for continuity to ground: There should be continuity.
    • Faulty left rear door switch
    • An open in the wire
    Left rear door closed
    Check for continuity to ground: There should be no continuity.
    • Faulty left rear door switch
    • A short to ground in the wire
    C22
    ORN
    Tailgate open
    Check for continuity to ground: There should be continuity.
    • Faulty tailgate latch switch
    • An open in the wire
    Tailgate closed
    Check for continuity to ground: There should be no continuity.
    • Faulty tailgate latch switch
    • A short to ground in the wire
    A29 *1
    PUR
    Hood open
    Check for continuity to ground: There should be continuity.
    • Faulty hood switch
    • An open in the wire
    Hood closed
    Check for continuity to ground: There should be no continuity.
    • Faulty hood switch
    • A short to ground in the wire

    *1:
    With security
    *2:
    Without security

    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    E9
    RED
    Driver's door lock knob switch in LOCK
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • Faulty driver's door lock knob switch
    • An open in the wire
    Driver's door lock knob switch in UNLOCK
    Check for continuity to ground: There should be no continuity.
    • Faulty driver's door switch lock knob switch
    • A short to ground in the wire
    E2
    BRN
    Driver's door lock knob switch in UNLOCK
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • Faulty driver's door lock knob switch
    • An open in the wire
    Driver's door lock knob switch in LOCK
    Check for continuity to ground: There should be no continuity.
    • Faulty driver's door lock knob switch
    • A short to ground in the wire
    M24 *
    PUR
    Front passenger's door lock knob switch in UNLOCK
    Check for continuity to ground: There should be continuity.
    • Poor ground (G502)
    • Faulty front passenger's door lock knob switch
    • An open in the wire
    Front passenger's door lock knob switch in LOCK
    Check for continuity to ground: There should be no continuity.
    • Faulty front passenger's door lock knob switch
    • A short to ground in the wire
    C45 *
    WHT
    Right rear door lock knob switch in UNLOCK
    Check for continuity to ground: There should be continuity.
    • Poor ground (G601) [G603]
    • Faulty right rear door lock knob switch
    • An open in the wire
    Right rear door lock knob switch in LOCK
    Check for continuity to ground: There should be no continuity.
    • Faulty right rear door lock knob switch
    • A short to ground in the wire
    C46 *
    GRN
    Left rear door lock knob switch in UNLOCK
    Check for continuity to ground: There should be continuity.
    • Poor ground (G603) [G601]
    • Faulty left rear door lock knob switch
    • An open in the wire
    Left rear door lock knob switch in LOCK
    Check for continuity to ground: There should be no continuity.
    • Faulty left rear door lock knob switch
    • A short to ground in the wire

    [ ]:
    LHD model

    *:
    With security

    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    M34
    GRY
    Ignition key inserted into the ignition switch
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • Faulty ignition key switch
    • An open in the wire
    Ignition switch LOCK (0), and the ignition key removed from the ignition switch
    Check for continuity to ground: There should be no continuity.
    • Faulty ignition key switch
    • A short to ground in the wire
    E3 *1
    PUR
    Driver's door key cylinder switch in LOCK
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • Faulty driver's door key cylinder switch
    • An open in the wire
    Driver's door key cylinder switch in neutral or UNLOCK
    Check for continuity to ground: There should be no continuity.
    • Faulty driver's door key cylinder switch
    • A short to ground in the wire
    E4 *1
    GRN
    Driver's door key cylinder switch in UNLOCK
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • Faulty driver's door key cylinder switch
    • An open in the wire
    Driver's door key cylinder switch in neutral or LOCK
    Check for continuity to ground: There should be no continuity.
    • Faulty driver's door key cylinder switch
    • A short to ground in the wire
    E8 *2
    LT BLU
    Driver's door lock switch in LOCK
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • Faulty door lock switch
    • An open in the wire
    Driver's door lock switch in neutral or UNLOCK
    Check for continuity to ground: There should be no continuity.
    • Faulty door lock switch
    • A short to ground in the wire
    E1 *2
    GRY
    Driver's door lock switch in UNLOCK
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • Faulty door lock switch
    • An open in the wire
    Driver's door lock switch in neutral or LOCK
    Check for continuity to ground: There should be no continuity.
    • Faulty door lock switch
    • A short to ground in the wire

    *1:
    With security
    *2:
    With driver's door lock switch