Cruise Control Unit Input Test


SRS components are located in this area. Review the SRS component locations, for LHD models, for RHD models, and precautions and procedures in the SRS section before performing repairs or service.

1.Disconnect the 14P connector from the control unit.

2.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 3.

3.With the 14P connector disconnected, make these input tests.

  • If test indicates a problem, find and correct the cause, then recheck the system.
  • If all the input tests prove OK, the cruise control unit may by faulty. Substitute a know-good cruise control unit and retest. If the system works properly, replace the cruise control unit.

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 
1 BRN Connect battery power Check the operation of the magnetic clutch: Clutch should click and output link should be locked. 
  • Faulty  brake pedal position switch
  • Faulty actuator
  • Poor ground (G202)
  • An open in the wire
  • Short to ground
 
3 BLK Under all conditions Check for continuity to ground:There should be continuity. 
  • Poor ground (G506)
  • An open in the wire
 
4 LHD: GRY
RHD:
BLK/RED 		Ignition switch ON (II) Check for voltage to ground:
There should be battery voltage. 
  • Blown No. 18 (15A) fuse in the under-dash fuse/relay box
  • An open in the wire
 

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 
5 WHT/BLK Brake pedal pressed, then released Check for voltage to ground:
There should be battery voltage with the pedal pressed, and 0 V with the pedal released. 
  • Blown No. 13 (20A) fuse in the under-hood fuse/relay box
  • Faulty  brake pedal position switch
  • An open in the wire
 
6 GRY Set button pushed Check for voltage to ground: There should be battery voltage.
When testing terminal No. 6, there should be no voltage on terminal No. 7. 
  • Blown No. 13 (20A) fuse in the under-hood fuse/relay box
  • Faulty horn relay
  • Faulty cruise control combination switch
  • Faulty cable reel
  • An open in the wire
 
7 LT GRN Resume button pushed Check for voltage to ground: There should be battery voltage.
When testing terminal No. 7, there should be no voltage on terminal No. 6. 
9 LHD: BRN
RHD:
BRN/YEL 		Connect battery power to terminal No. 9 and ground to terminal No. 11 Check the operation of the actuator motor: You should be able to hear the motor. 
  • Faulty actuator
  • An open in the wire
 
11 LHD: WHT
RHD:
BRN/WHT 
10 BLU Ignition switch ON (II) Attach to ground: Cruise control indicator in the gauge assembly should comes on. 
  • Blown bulb
  • Faulty gauge control module
  • An open in the wire
 
12 BLU Ignition switch ON (II) and master button ON; raise the front of the vehicle, and rotate one wheel slowly while holding the other wheel Check for voltage between the BLU/WHT (+) and BLK (-) terminal: There should be 0- 5 V or more repeatedly. 
  • Faulty  ECM/PCM
  • An open in the wire
  • Short to ground
 
13 LHD: GRN
RHD:
LT GRN 		Master button ON, then OFF Check for continuity between No. 2 terminal and No. 13 terminal: There should be continuity with the master button ON and no continuity with the master button OFF. 
  • Faulty cruise control combination switch
  • Faulty cable reel
  • An open in the wire
 
14 M/T:
LT BLU 		Clutch pedal released Check for continuity to ground: There should be continuity.
NOTE: There should be no continuity when the clutch pedal is pressed. 
  • Faulty  clutch pedal position switch
  • Poor ground (LHD: G501, RHD: G503)
  • An open in the wire
 
A/T:PNK Shift lever in [D], [D3] Check for continuity to ground: There should be continuity.
NOTE: There should be no continuity when shift lever is in other positions. 
  • Faulty PCM
  • An open in the wire
 

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 
2 PNK Reconnect the cruise control unit 14P connector, turn the ignition switch and master switch ON (II) Check for voltage to ground:There should be battery voltage. 
  • Blown No. 18 (15A) fuse in the under-dash fuse/relay box
  • Faulty  cruise control unit
  • Short to ground
 
8 LHD: ORN
RHD: BLU 		Reconnect the cruise control unit 14P connector, start the engine turn the master button ON and drive the vehicle at speeds over 25 mph (40 km/h) with the cruise control set Check for voltage to ground:
There should be about 1V 
  • Blown No. 18 (15A) fuse in the under-hood fuse/relay box
  • Faulty cruise control unit
  • Short to ground