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Home >> Suzuki >> 2012 >> Grand Vitara Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System >> Diagnostic Information and Procedures >> DTC B1561: Engine Coolant Temperature Sensor and/or Its Circuit Malfunction >> DTC Troubleshooting
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DTC Troubleshooting

Step Action Yes No
1  DTC check 
  1. Connect scan tool to DLC with ignition switch turned OFF.
  2. Check DTC of ECM

Is it in good condition? 		 Substitute a known-good HVAC control module and recheck. Go to applicable DTC diag. flow.
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