Suzuki Vitara (LY) 2016-2017 · Service Manual K14C · Diagnostic Information and Procedures

DTC P0606

Precautions: General safety (00)

DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
P0606: Control Module Processor
ECM internal processor failure.
(3 D/C detection logic)
•ECM power supply circuit and/or ground circuit
•HO2S-2
•ECM
System Description
Internal control module is installed in ECM.
DTC Confirmation Procedure
NOTE:
Check that the following DTCs are not detected in this “DTC Confirmation Procedure”.
•CKP sensor (P0335 and P0336)
1)Run engine at idle speed 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 P0606 still detected?
Go to Step 2.
Check for intermittent trouble.
2
ECM power and ground circuit check
1)Check ECM power supply and ground circuits. icon 
Is check result OK?
Go to Step 3.
Repair or replace defective wire harness.
3
DTC recheck
1)Replace HO2S-2. icon 
2)Perform “DTC Confirmation Procedure”, and check DTC.
Is DTC P0606 still detected?
Replace ECM and recheck DTC. icon 
End.