Suzuki Vitara (LY) 2016-2017 · Service Manual M16A · Diagnostic Information and Procedures

DTC P0602

Precautions: General safety (00)

DTC Detecting Condition and Trouble Area
NOTE:
After a reprogramming of ECM is executed, if DTC P0602 is indicated, it is possible that the reprogramming of ECM is not completed correctly.
DTC detecting condition Trouble area
P0602: Control Module Programming Error
ECM internal failure (data programming error).
(1 D/C detection logic but MIL does not light up)
•Reprogramming failure of ECM
•ECM power supply circuit and/or ground circuit
•ECM
DTC Confirmation Procedure
1)Set ignition “ON” for 1 min.
DTC Troubleshooting
Step Action Yes No
1
DTC recheck
1)Clear DTC. icon 
2)Set ignition “OFF”.
3)Perform “DTC Confirmation Procedure”, and check DTC.
Is DTC P0602 still detected?
Go to Step 2.
Intermittent trouble.
Check for intermittent trouble. icon 
2
ECM reprogramming check
Was reprogramming of ECM executed?
Execute reprogramming of ECM correctly again.
Go to Step 3.
3
ECM power and ground circuit check
1)Check ECM power and ground circuit. icon 
Is check result OK?
Replace ECM and recheck DTC. icon 
Repair or replace defective wire harness.