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
    Test condition
    Test: Desired result
    Possible cause if result is not obtained
    1
    WHT
    Under all conditions
    Check for voltage between immobilizer-keyless control unit 7P connector No. 1 terminal and body ground: There should be battery voltage.
    • Blown No. 16 (15 A) fuse in the under-hood fuse/relay box
    • An open in the wire
    2
    YEL
    Ignition switch ON (II)
    Check for voltage to ground: There should be battery voltage.
    • Blown No. 2 (15 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    7
    BRN
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G101)
    • An open in the wire
    6
    PNK
    Ignition key inserted into the ignition switch
    Check for continuity to ground: There should be continuity.
    • Poor ground (G403)
    • Faulty ignition key switch
    • An open in the wire