Dtc P0601 Internal Control Module Memory Check Sum Error - Suzuki 2000 Grand Vitara SQ625 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 PROCE-
DURE.
(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?
ACTION
ENGINE (H25 ENGINE) 6-1-113
TROUBLE AREA
ECM (PCM)
YES
Substitute a known-
good ECM (PCM)
and recheck.
NO
Go to "ENGINE
DIAG. FLOW
TABLE".