P0601

DTC P0601 Microcomputer (checksum)

Circuit description

The value calculated by the transmission control computer is compared with the data stored in the transmission control computer ASSY when IG is ON, and when they do not match 2 times consecutively, DTC is detected and the learning is prohibited. If the problem persists, cut continuity to all the solenoid (lock at 4th gear).





Monitor description

TCM observes inner operation. If a defect is found in inner operation, TCM turns on MIL and records diagnostic codes.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS
Either of the following conditions must be satisfied: condition (A) or (B)

Condition (A)





Condition (B)





TYPICAL MALFUNCTION THRESHOLDS





Inspection steps

NOTE:
Read the freeze frame data using SSM3. Freeze frame data includes a part of the engine operation condition when a trouble occurs and the information helps the troubleshooting.