LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2007 >> SX4 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 149 (Air Conditioning System) >> Diagnostic Information And Procedures >> DTC B1561: Engine Coolant Temperature Sensor And/Or Its Circuit Malfunction >> DTC Troubleshooting
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Troubleshooting

WARNING: This page is about a different car, the 2007 Suzuki Grand Vitara and 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
DTC TROUBLESHOOTING CHART

Step Action YES NO
DTC check 
  1. Connect scan tool to DLC with ignition switch turned OFF.
  2. Check ECM for DTC.

Are there DTC P0116, P0117 or P0118? 
Go to DTC P0116: ENGINE COOLANT TEMPERATURE CIRCUIT RANGE / PERFORMANCE or DTC P0117 / P0118: ENGINE COOLANT TEMPERATURE CIRCUIT LOW / HIGH INPUT . Substitute a known-good HVAC control module and recheck.