Dtc P0601 Internal Control Module Memory Check Sum Error - Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual

DTC P0601 Internal Control Module Memory Check Sum Error

SYSTEM DESCRIPTION
Internal control module is installed in ECM (PCM).
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
Check sum is not equal to specified value.
DTC CONFIRMATION PROCEDURE
NOTE:
Check to make sure that following conditions are satisfied when using this DTC CONFIRMATION PRO-
CEDURE.
1) With ignition switch OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC by using scan tool if any.
3) Start engine and run it for 10 sec.
4) Check DTC by using scan tool.
DTC TROUBLESHOOTING
Step
1 Was "Engine DIag. Flow Table" performed?
ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE) 6-1-129
Action
TROUBLE AREA
ECM (PCM)
Yes
Substitute a known-good
ECM (PCM) and recheck.
No
Go to "Engine Diag. Flow
Table".