Suzuki Vitara (LY) 2016-2017 · Service Manual Manual Type · Diagnostic Information and Procedures

Warm air does not come out or insufficient heating (Faulty temperature control)

Precautions: General safety (00)

Condition Possible Cause Action
Warm air does not come out or insufficient heating (Faulty temperature control)
Broken or bent temperature control cable
Check temperature control cable.
Faulty temperature selector
Check temperature selector.
Incorrect installation of temperature control cable
Check position of cable and adjust it if necessary.
Clogged air ducts
Repair air ducts.
Faulty additional heater system (if equipped)
Check additional heater system. icon 
Faulty thermostat (Petrol model)
Check thermostat. icon 
Faulty ECT sensor
Check ECT sensor.
•Petrol model: icon 
•Diesel model: icon 
Leaky or clogged heater hoses
Replace heater hoses.
Broken temperature control door assembly
Repair temperature control door assembly.
Leaky or clogged heater core
Replace heater core.