1. DTC P0800[45] description
This diagnosis applies to the microprocessor inside the TCCM.
2. Condition for setting DTC P0800[45]
Condition for running the DTC
- The ignition switch is turned from OFF to ON.
Condition for setting the DTC
- The TCCM detects that the calculated checksum does not match the checksum recorded in the internal ROM.
3. Action taken when DTC P0800[45] sets
- The TCCM illuminates the check 4WD warning light when the diagnostic runs and fails.
- The current transfer position is retained.