Suzuki Vitara (LY) 2016-2017 · Service Manual Adaptive Cruise Control · Diagnostic Information and Procedures

Adaptive Cruise Control System Symptom Diagnosis

Precautions: Precautions for Diagnosing Trouble · Precautions for Adaptive Cruise Control System · Precautions for Replacing RBS Control Module · General safety (00)

NOTE:
Adaptive cruise control system is controlled by the RBS control module communicating with ESP® control module, BCM, ECM, ENG A-STOP control module, steering angle sensor and combination meter through CAN communication. Before performing symptom diagnosis, check that no DTC is indicated in these control modules.
Condition Possible Cause Action
Adaptive cruise control system cannot be ON
Faulty CRUISE (main) switch
Check CRUISE (main) switch. icon 
Faulty wiring or grounding
Repair wiring.
Faulty ECM
Check ECM.
•M16A model: icon 
•K14C model: icon 
•D16AA model: icon 
Vehicle speed cannot be set
Faulty SET/– switch
Check SET/– switch. icon 
Faulty brake light switch
Check brake light switch. icon 
Faulty CPP switch (M/T model)
Check CPP switch.
•M16A model: icon 
•K14C model: icon 
•D16AA model: icon 
Faulty wiring or grounding
Repair wiring.
Faulty ECM
Check ECM.
•M16A model: icon 
•K14C model: icon 
•D16AA model: icon 
Acceleration or deceleration is not available by operating RES/+ or SET/– switch
Faulty RES/+ or SET/– switch
Check RES/+ or SET/– switch. icon 
Faulty wiring or grounding
Repair wiring.
Faulty ECM
Check ECM.
•M16A model: icon 
•K14C model: icon 
•D16AA model: icon 
Vehicle distance cannot be changed
Faulty distance switch
Check distance switch. icon 
Faulty wiring or grounding
Repair wiring.
Faulty ECM
Check ECM.
•M16A model: icon 
•K14C model: icon 
•D16AA model: icon 
Adaptive cruise control cannot be canceled
Faulty CANCEL switch
Check CANCEL switch. icon 
Faulty brake light switch
Check brake light switch. icon 
Faulty CPP switch (M/T model)
Check CPP switch.
•M16A model: icon 
•D16AA model: icon 
Faulty wiring or grounding
Repair wiring.
Faulty ECM
Check ECM.
•M16A model: icon 
•K14C model: icon 
•D16AA model: icon 
Adaptive cruise control at vehicle speed stored in memory cannot be resumed after adaptive cruise control was canceled by means other than CRUISE (main) switch
Adaptive cruise control was canceled by means other than recoverable condition.
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Faulty RES/+ switch
Check RES/+ switch. icon 
Faulty wiring or grounding
Repair wiring.
Faulty ECM
Check ECM.
•M16A model: icon 
•K14C model: icon 
•D16AA model: icon