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Home >> Suzuki >> 2011 >> Grand Vitara Base >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Information and Procedures >> DTC P0649: Speed Control Lamp Control Circuit >> DTC Troubleshooting
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DTC Troubleshooting

TROUBLESHOOTING CHART

Step Action YES NO
DTC check 
  1. Check control modules communicated by means of CAN for DTCs.

Is there any CAN-DTC(s) detected? 
Go to applicable DTC diag. flow. See CAN DTC (LOST COMMUNICATION AND COMMUNICATION BUS OFF) TABLE Replace combination meter and recheck DTC. If DTC P0649 is still detected, substitute a known-good ECM and recheck.