Immobilizer-Keyless Control Unit Input Test
  1. Disconnect the 7P connector (A) from the immobilizer-keyless control unit (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.
    Cavity
    Wire
    Terminalname
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    7
    BRN
    LG
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G101)
    • An open in the wire
    1
    WHT
    VBU
    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
    2
    YEL
    IG1
    Ignition switch ON (II)
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 9 (20 A) fuse in the driver's under-dash fuse/relay box
    • An open in the wire
    3
    BLU
    B-CAN LO
    Disconnect the gauge control module 32P connector
    Check for continuity between the terminal and the gauge control module 32P connector No. 23 terminal: There should be continuity.
    An open in the wire
    Disconnect driver's under-dash fuse/relay box connector P (20P)
    Check for continuity between the terminal and driver's under-dash fuse/relay box connector P (20P) No. 5 terminal: There should be continuity.
    An open in the wire
    4
    PNK
    B-CAN HI
    Disconnect the gauge control module 32P connector
    Check for continuity between the terminal and the gauge control module 32P connector No. 24 terminal: There should be continuity.
    An open in the wire
    Disconnect driver's under-dash fuse/relay box connector P (20P)
    Check for continuity between the terminal and driver's under-dash fuse/relay box connector P (20P) No. 6 terminal: There should be continuity.
    An open in the wire
    6 *1
    LT GRN
    IMOCD (S-NET)
    Disconnect ECM/PCM connector A (49P) *3 , then ignition switch ON (II)
    Measure the voltage to ground: There should be battery voltage.
    • A short to ground in the wire
    • An open in the wire
    Check for continuity between the terminal and ECM/PCM connector A (49P) No. 46 terminal: There should be continuity.
    An open in the wire
    Measure the resistance between the terminal and body ground: There should be more than 50 kΩ.
    • Faulty imoes unit
    • Faulty driver's under-dash fuse/relay box
    • An open in the wire
    6 *2
    LT GRN
    IMOCD (S-NET)
    Disconnect ECM/PCM connector A (44P) *3 , then ignition switch ON (II)
    Measure the voltage to ground: There should be battery voltage.
    • A short to ground in the wire
    • An open in the wire
    Check for continuity between the terminal and ECM/PCM connector A (44P) No. 44 terminal: There should be continuity.
    An open in the wire
    Measure the resistance between the terminal and body ground: There should be more than 50 kΩ.
    • Faulty imoes unit
    • Faulty driver's under-dash fuse/relay box
    • An open in the wire

    *1:
    K24Z3 engine
    *2:
    R20A3 engine
    *3:
    To disconnect the ECM/PCM connectors, turn the ignition switch to LOCK (0) and jump the SCS line with the HDS.