Entry Lights Control System (MICU) Input Test

NOTE: Make sure the ignition switch OFF before disconnecting the under-dash fuse/relay box connectors.

1.Turn the ignition switch OFF.

2.Remove the right or left kick panel.

3.Disconnect the under-dash fuse/relay box connectors.

NOTE: All connector views are wire side of female terminals.

 

4.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 are OK, go to 5.

5.With the connectors still disconnected, make these input tests at connectors.

  • If any test indicates a problem, find and correct the cause, then recheck the system.
  • If the input tests prove OK, go to 6.

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 
K4 LT GRN Under all conditions Connect the K4 terminal to the body ground:
The ceiling light and ignition key light should come on. 
  • Blown No. 17 (7.5 A) fuse in the under-hood fuse/relay box
  • Faulty ceiling light
  • Faulty ignition key light
  • An open in the wire
 


6.Reconnect the under-dash fuse/relay box connectors, then make these input tests at the connector.


Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 
T34 BLK Under all conditions Check for voltage to ground:
There should be less than 1 V. 
  • Poor ground (G503)
  • An open in the wire
 
E6 BLK Under all conditions Check for voltage to ground:
There should be less than 1 V. 
  • Poor ground (G602, G652)
  • An open in the wire
 
E33 BLK Under all conditions Check for voltage to ground:
There should be less than 1 V. 
  • Poor ground (G651)
  • An open in the wire
 
F20 BLK Under all conditions Check for voltage to ground:
There should be less than 1 V. 
  • Poor ground (G401)
  • An open in the wire
 
E3 LT GRN Front passenger's door open Check for voltage to ground:
There should be less than 1 V. 
  • 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
 
E2
[E17] 		GRY
[BRN] 		Right rear door open Check for voltage to ground:
There should be less than 1 V. 
  • Faulty right rear door switch
  • An open in the wire
 
Right rear door closed Check for voltage to ground:
There should be 5 V or more. 
  • Faulty right rear door switch
  • Short to ground
 
E17
[E2] 		BRN
[GRY] 		Left rear door open Check for voltage to ground:
There should be less than 1 V. 
  • Faulty left rear door switch
  • An open in the wire
 
Left rear door closed Check for voltage to ground:
There should be 5 V or more. 
  • Faulty left rear door switch
  • Short to ground
 
E37 GRN Driver's door open Check for voltage to ground:
There should be less than 1 V. 
  • 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
 
R6 PNK Ignition key inserted into the ignition switch Check for voltage to ground:
There should be less than 1 V. 
  • Poor ground (G403)
  • Faulty ignition key switch
  • An open in the wire
 
Ignition switch OFF and 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
 
T23 WHT Driver's door lock knob switch unlocked Check for voltage to ground:
There should be less than 1 V. 
  • Poor ground (G501)
  • Faulty driver's door lock knob switch
  • An open in the wire
 
T24 LT GRN Driver's door lock knob switch locked Check for voltage to ground:
There should be 5 V or more. 
  • Faulty driver's door lock knob switch
  • Short to ground
 

[ ]: RHD