DTC P084F
DTC P084F: Park/Neutral Switch Output Circuit
General Description
The transmission control module (TCM) switches the PARKOUT output to Hi/Lo according to the parking condition of the transmission. The TCM monitors the return signal of the PARKOUT output, and when the return signal and PARKOUT output do not match for a specified duration, the TCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 1 second or more |
| DTC Type | One drive cycle, MIL off, A/T gear position indicator blinks |
Enable Conditions
| Condition | ||
|---|---|---|
| Vehicle | ON mode | |
Malfunction Threshold
The return signal and PARKOUT output do not match for at least 1 second.
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 PARKOUT line open (includes a loose or disconnected connector)
- TCM PARKOUT line short to ground
- TCM internal failure
Confirmation Procedure
Operating Condition
- 1.
Start the engine, and wait for several seconds in P position/mode.
- 2.
While pressing the brake pedal, shift the transmission to N position/mode and wait for several seconds.
With the HDS
None.
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the A/T gear position indicator blinks and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the TCM memory. The MIL does not come on.
Conditions for clearing the DTC
The A/T gear position indicator comes off by turning the vehicle to the OFF (LOCK) mode. The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.