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Home >> Suzuki >> 2011 >> Grand Vitara Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis >> Diagnostic Information and Procedures >> DTC P0602: Control Module Programming Error >> DTC Troubleshooting
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DTC Troubleshooting

P0602 DIAGNOSIS PROCEDURE

Step Action YES NO
1  DTC recheck 
  1. Clear DTC, see DTC CLEARANCE:J24B .
  2. Turn OFF ignition switch.
  3. Perform DTC confirmation procedure, and check DTC.

Is DTC P0602 still detected? 		 Go to Step 2. Check for intermittent trouble, see INTERMITTENT AND POOR CONNECTION INSPECTION .
2  ECM reprogramming check 
Was reprogramming of ECM executed? 		 Execute reprogramming of ECM correctly once again. Go to Step 3.
3  ECM power and ground circuit check 
  1. Check ECM power and ground circuit, see ECM Power and Ground Circuit Check .

Is it in good condition? 		 Repair or replace defective wire harness. Substitute a known-good ECM and recheck.
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