Keyless Receiver Unit Input Test

1.Remove the heater control panel or climate control unit.

2.Disconnect the 7P or 5P connector (A) from the keyless receiver unit (B).

 

3.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 4.

4.With the connector still disconnected, make these input tests at the connector.

  • If any test indicates a problem, find and correct the cause, then recheck the system.
  • If all the input tests prove OK, replace the keyless receiver unit.

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 
BLK Under all conditions Check for continuity to ground:
There should be continuity. 
  • Poor ground (G502)
  • An open in the wire
 
BLU/ORN Under all conditions Check for continuity between the No. 2 terminal and the No. 2 terminal of the under-dash fuse/relay box connector Y (13P):
There should be continuity. 
An open in the wire 
3
[2] 
BLU/ORN Under all conditions Check for continuity between the No. 3 terminal and the No. 2 terminal of the under-dash fuse/relay box connector K (17P):
There should be continuity. 
An open in the wire 
WHT/GRN Under all conditions Check for continuity between the No. 4 terminal and the No. 4 terminal of the activation indicator relay:
There should be continuity. 
An open in the wire 
5
[3] 
YEL Ignition switch ON (II) Check for voltage to ground:
There should be battery voltage. 
  • Blown No. 10 (7.5 A) fuse in the under-dash fuse/relay box
  • An open in the wire
 
LT GRN/BLK Under all conditions Check for continuity between the No. 6 terminal and the No. 3 terminal of the under-dash fuse/relay box connector Y (13P):
There should be continuity. 
An open in the wire 
7
[5] 
WHT/RED Under all conditions Check for voltage to ground:
There should be battery voltage. 
  • Blown No. 23 (10 A) fuse in the under-hood fuse/relay box
  • An open in the wire
 

[ ]: KE