| Symptom | Diagnostic procedure | Also check for | 
| Cruise control cannot be set | 
	Check main switch (see page 4-46)Check SET/RESUME/CANCEL switch (see page 4-46)Check brake pedal position switch and mounting (see page 19-5)Check clutch pedal position switch and mounting (M/T) (see page 4-49)Check transmission range switch (A/T) (see page 14-160)Check control unit (see page 4-44) | 
	Poor ground: G101(A/T), G401(M/T), G501Open circuit, loose or disconnected terminals: LT GRN, BLK/ORN, GRY/RED, BLU, LT BLU, BLU/WHT | 
| Cruise control can be set but indicator light does not go on | 
	Check dimming circuit in gauge (see page 22-88)Check control unit (see page 4-44) | 
	Poor ground: G501Open circuit, loose or disconnected terminals: YEL, BLK/YEL | 
| Cruise speed is noticeably higher or lower than what was set | 
	Check vehicle speed sensor (VSS) (see page 22-96)Check actuator (see page 4-47)Check control unit (see page 4-44) |  | 
| Excessive overshooting or undershooting when trying to set speed | 
	Check actuator (see page 4-47)Check vehicle speed sensor (VSS) (see page 22-96)Check control unit (see page 4-44) |  | 
| Speed fluctuation on a flat road with cruise control set | 
	Check vehicle speed sensor (VSS) (see page 22-96)Check actuator (see page 4-47)Check control unit (see page 4-44) |  | 
| Vehicle does not decelerate or accelerate accordingly when SET/RESUME/CANCEL button is pushed | 
	Check SET/RESUME/CANCEL switch (see page 4-46)Check control unit (see page 4-44) | Open circuit, loose or disconnected terminals: GRY/RED, LT GRN/BLK | 
| Set speed not cancelled (engine rpm stays high) when clutch pedal is pushed (M/T) | 
	Check clutch pedal position switch and mounting (see page 4-49)Check control unit (see page 4-44) | Short to ground in the LT BLU wire | 
| Set speed not cancelled when shift lever is moved to Neutral position (A/T) | 
	Check transmission range switch (see page 14-160)Check control unit (see page 4-44) | Short to ground in the LT BLU wire | 
| Set speed not cancelled when brake pedal is pushed | 
	Check brake pedal position switch and mounting (see page 19-6)Check control unit (see page 4-44) | Open circuit, loose or disconnected terminals: WHT/BLK |