Suzuki 2006 SX4, Service Manual

Page: 1396 / 1478

10A-5 Cruise Control System:
Diagnostic Information and Procedures
Cruise Control System Symptom Diagnosis
S6RW0CA104001
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 Possible cause Correction / Reference Item
CRUISE or SET indicator
light does not turn ON or
OFF MAIN (ON/OFF) switch faulty Check MAIN (ON/OFF) switch for function
referring to “Cruise Control Switch Inspection”.
SET/COAST switch faulty Check SET/COAST switch for function
referring to “Cruise Control Switch Inspection”.
Brake light switch faulty Check brake light switch for function referring
to “Brake Light Switch Inspection”.
Wiring or grounding faulty Repair.
Combination meter faulty Replace.
ECM faulty Replace after making sure that none of above
parts is faulty.
Vehicle speed can not be
set MAIN (ON/OFF) switch faulty Check MAIN (ON/OFF) switch for function
referring to “Cruise Control Switch Inspection”.
SET/COAST switch faulty Check SET/COAST switch for function
referring to “Cruise Control Switch Inspection”.
Brake light switch faulty Check brake light switch for function referring
to “Brake Light Switch Inspection”.
CPP switch faulty (M/T model) Check CPP switch for function referring to
“Clutch Pedal Position (CPP) Switch (for
Cruise Control) Inspection and Adjustment”.
Wiring or grounding faulty Repair.
ECM faulty Replace after making sure that none of above
parts is faulty.
Acceleration or
deceleration is not
available by using RES/
ACC or SET/COAST
switch RES/ACC or SET/COAST switch faulty Check RES/ACC or SET/COAST switch for
function referring to “Cruise Control Switch
Inspection”.
Wiring or grounding faulty Repair.
ECM faulty Replace after making sure that none of above
parts is faulty.
Cruise control cannot be
cancelled CANCEL switch faulty Check CANCEL switch for function referring to
“Cruise Control Switch Inspection”.
Brake light switch faulty Check brake light switch for function referring
to “Brake Light Switch Inspection”.
CPP switch faulty (M/T model) Check CPP switch for function referring to
“Clutch Pedal Position (CPP) Switch (for
Cruise Control) Inspection and Adjustment”.
Wiring or grounding faulty Repair.
ECM faulty Replace after making sure that none of above
parts is faulty.
Cruise control at vehicle
speed stored in memory
cannot be resumed after
cruise control was
cancelled by means other
than MAIN (ON/OFF)
switch RES/ACC switch faulty Check RES/ACC switch for function referring
to “Cruise Control Switch Inspection”.
Wiring or grounding faulty Repair.
ECM faulty Replace after making sure that none of above
parts is faulty.