DTC P0893

DTC P0893: Multiple Gears Engaged

General Description

The transmission control module (TCM) monitors the difference of the transmission output speeds of current and specified time before to avoid unnecessary decelerations. If the difference of the transmission output speeds of current and specified time before deviates for a specified value, 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	Minimum	Maximum
Master cylinder oil pressure	-	500 kPa (5.09 kgf/cm² , 72 psi)
Acceleration	-	9.8 fps 2 (3 m/s 2)
Shift position	D
Other	Parking brake unlocked

Malfunction Threshold

The difference of the transmission output speeds of current and specified time before deviates more than 350 rpm.

Possible Cause

NOTE:

The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

Transmission internal failure

Confirmation Procedure

Operating Condition

1.
Start the engine.
2.
Drive the vehicle for a while.

Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

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.