Entry Light Control System

Control Unit Input Test (cont'd)

 22-133  

  1. With the connectors still disconnected, make these input tests at the connector.
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
K2 BLU/ORN Under all conditions Check for continuity between the K2 terminal and the keyless receiver unit 5P connector No. 2 terminal:

There should be continuity
  • An open in the wire
O7 GRN/RED Ceiling light switch in middle position Attach to ground:

Ceiling light(s) should come on
  • Blown No. 3 (7.5 A) fuse in the under-hood fuse/relay box
  • Blown bulb
  • Faulty ceiling light
  • An open in the wire
X8 WHT/BLK Under all conditions Attach to ground:

Ignition key light should come on
  • Blown No. 3 (7.5 A) fuse in the under-hood fuse/relay box
  • Faulty ignition key light
  • An open in the wire
  1. Reconnect the connectors to the under-dash fuse/relay box and make sure these input tests at the appropriate connectors on the under-dash fuse/relay box
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
P18 RED Trunk lid [Tailgate] open Check for voltage to ground:

There should be 1 V or less
  • Poor ground (G601,[G553])
  • Faulty trunk [Tailgate] latch switch
  • An open in the wire
Trunk lid [Tailgate] closed Check for voltage to ground:

There should be 5 V or more
  • Faulty trunk latch switch
  • Short to ground
Q2 GRN/WHT Left (right) rear door open Check for voltage to ground:

There should be 1 V or less
  • Faulty left (right) rear door switch
  • An open in the wire
Left (right) rear door closed Check for voltage to ground:

There should be 5 V or more
  • Faulty left (right) rear door switch
  • Short to ground
Q3 GRN Driver's door open Check for voltage to ground:

There should be 1 V or less
  • Faulty driver's door switch
  • An open in the wire
Driver's door closed Check for voltage to ground:

There should be 5 V or more
  • Faulty driver's door switch
  • Short to ground
Q4 LT GRN/RED Front passenger's door open Check for voltage to ground:

There should be 1 V or less
  • Faulty front passenger's door switch
  • An open in the wire
Front passenger's door closed Check for voltage to ground:

There should be 5 V or more
  • Faulty front passenger's door switch
  • Short to ground
X5 RED/WHT Ignition key inserted into the ignition switch Check for voltage to ground:

There should be 1 V or less
  • Poor ground (G401)
  • Faulty ignition key switch
  • An open in the wire
Ignition key removed from the ignition switch Check for voltage to ground:

There should be 5 V or more
  • Faulty ignition key switch
  • Short to ground
Y8 YEL/RED Driver's door lock knob switch locked Check for voltage to ground:

There should be 1 V or less.
  • Poor ground (G501)
  • Faulty driver's door lock knob switch
  • An open in the wire
Driver's door lock knob switch unlocked Check for voltage to ground:

There should be 5 V or more
  • Faulty driver's door lock knob switch
  • Short to ground