FixVault

DTC P0601: Internal Control Module Memory Check SUM ERROR: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy 
  • Check sum fault
Faulty TCM
Enable Conditions 
  • IG "on"
Threshold value 
  • Checksum fault or TCU internal Failure.
Diagnostic Time 
  • More than 1sec
Fail Safe 
  • Locked in 3 3rd gear.