FixVault
Home › Suzuki › 2009 › Grand Vitara Base, Automatic › Repair and Diagnosis › Transmission › Automatic Trans › Automatic Transmission - 4AT › Diagnostic Information and Procedures › DTC P0602/P1702: Control Module Programming Error/Internal Control Module Memory Check Sum Error › DTC Troubleshooting

DTC Troubleshooting

DTC TROUBLESHOOTING CHART

Step Action YES NO
1  DTC check 
  1. Clear DTC referring to DTC CLEARANCE  .
  2. Turn ignition switch to OFF position.
  3. Turn ignition switch to ON position and recheck DTC.

Is DTC P0602 or P1702 still detected? 		 Substitute a known-good TCM and recheck. Intermittent trouble. Check for intermittent referring to INTERMITTENT AND POOR CONNECTION INSPECTION .
About FixVault