Diagnostic Information And Procedures - Suzuki 2006 SX4 Service Manual

10A-5 Cruise Control System:
Cruise Control System Symptom Diagnosis
NOTE
• ECM uses TCM, combination meter, ABS control module and CAN communication to transmit and
receive data for cruise control. Therefore, check that no DTC is detected from ECM, TCM, ABS
control module before performing this Cruise Control System Symptom Diagnosis. If DTC is
detected, correct trouble indicated by that DTC first.
• Check each part in the order from the top of the following list.
Condition
CRUISE or SET indicator
light does not turn ON or
OFF
Vehicle speed can not be
set
Acceleration or
deceleration is not
available by using RES/
ACC or SET/COAST
switch
Cruise control cannot be
cancelled
Cruise control at vehicle
speed stored in memory
cannot be resumed after
cruise control was
cancelled by means other
than MAIN (ON/OFF)
switch

Diagnostic Information and Procedures

Possible cause
MAIN (ON/OFF) switch faulty
SET/COAST switch faulty
Brake light switch faulty
Wiring or grounding faulty
Combination meter faulty
ECM faulty
MAIN (ON/OFF) switch faulty
SET/COAST switch faulty
Brake light switch faulty
CPP switch faulty (M/T model)
Wiring or grounding faulty
ECM faulty
RES/ACC or SET/COAST switch faulty Check RES/ACC or SET/COAST switch for
Wiring or grounding faulty
ECM faulty
CANCEL switch faulty
Brake light switch faulty
CPP switch faulty (M/T model)
Wiring or grounding faulty
ECM faulty
RES/ACC switch faulty
Wiring or grounding faulty
ECM faulty
Correction / Reference Item
Check MAIN (ON/OFF) switch for function
referring to "Cruise Control Switch Inspection".
Check SET/COAST switch for function
referring to "Cruise Control Switch Inspection".
Check brake light switch for function referring
to "Brake Light Switch Inspection".
Repair.
Replace.
Replace after making sure that none of above
parts is faulty.
Check MAIN (ON/OFF) switch for function
referring to "Cruise Control Switch Inspection".
Check SET/COAST switch for function
referring to "Cruise Control Switch Inspection".
Check brake light switch for function referring
to "Brake Light Switch Inspection".
Check CPP switch for function referring to
"Clutch Pedal Position (CPP) Switch (for
Cruise Control) Inspection and Adjustment".
Repair.
Replace after making sure that none of above
parts is faulty.
function referring to "Cruise Control Switch
Inspection".
Repair.
Replace after making sure that none of above
parts is faulty.
Check CANCEL switch for function referring to
"Cruise Control Switch Inspection".
Check brake light switch for function referring
to "Brake Light Switch Inspection".
Check CPP switch for function referring to
"Clutch Pedal Position (CPP) Switch (for
Cruise Control) Inspection and Adjustment".
Repair.
Replace after making sure that none of above
parts is faulty.
Check RES/ACC switch for function referring
to "Cruise Control Switch Inspection".
Repair.
Replace after making sure that none of above
parts is faulty.
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