DTC Advanced Diagnostics: P0600
DTC P0600 : Serial Communication
General Description
The driver IC which has diagnostic function and the CPU are built into the transmission control module (TCM). If the CPU cannot receive diagnostic information from the driver IC for a specified duration due to occurrence of communication abnormality between the driver IC and the CPU, the TCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 5 seconds or more |
| DTC Type | One drive cycle, MIL on, Shift position indicator blinks |
Enable Conditions
| Condition | ||
|---|---|---|
| Other | When the vehicle is turned to the ON or OFF (LOCK) mode | |
Malfunction Threshold
One of the conditions is met for at least 5 seconds:
- The CPU does not receive signal from the driver IC via the communication lines.
- The signal sent from the driver IC is abnormal.
Possible Cause
The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- TCM internal circuit failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL comes on, the shift position indicator blinks, and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the TCM memory.
Conditions for clearing the DTC
The shift position indicator comes off by turning the vehicle to the OFF (LOCK) mode. The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool clear command.