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Home >> Suzuki >> 2006 >> Grand Vitara Premium, RWD, Standard >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System >> Diagnostic Information And Procedures >> DTC B1557: Wheel Speed Sensor And/Or Its Circuit Malfunction >> DTC Troubleshooting
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DTC Troubleshooting

DTC TROUBLESHOOTING CHART

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

Is there DTC C1021, C1022 / C1025, C1026 / C1031, C1032 / C1035, C1036? 		 Go to DTC C1021, C1022/C1025, C1026/C1031, C1032/C1035, C1036: RIGHT-FRONT/LEFT-FRONT/RIGHT-REAR/LEFT-REAR WHEEL SPEED SENSOR CIRCUIT OR ENCODER FAILURE . Substitute a known-good HVAC control module and recheck.
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