P1814

Circuit Description

This diagnostic test checks for unusually high throttle angle and low vehicle speed when the transmission is in DRIVE or REVERSE. The primary purpose of this DTC is to record the Failure Record Data, because this condition could damage the powertrain or create an unsafe condition. DTC P1814 is a Type D DTC.

If the PCM detects an unusually high throttle angle and low vehicle speed when the transmission is in DRIVE or REVERSE, then DTC P1814 sets.

Conditions for Running the DTC

^ No TP DTCs P0121, P0122, or P0123.
^ No VSS DTCs P0502 or P0503.
^ No A/T 155 DTCs P0716 or P0717.
^ No Transmission Fluid Pressure (TFP) manual valve position switch DTC P1810.

Conditions for Setting the DTC

All of the following conditions are true for 12 seconds.

^ The transmission is in DRIVE or REVERSE.
^ The throttle angle is 65 degrees or greater.
^ The slip is greater than 1504 RPM.
^ The vehicle speed is less than 8 km/h (5 mph).

Action Taken When the DTC Sets

^ The PCM does not illuminate the malfunction indicator lamp (MIL).
^ The PCM stores DTC P1814 in PCM history.

Conditions for Clearing the DTC

^ A scan tool can clear the DTC from PCM history.
^ The PCM clears the DTC from PCM history if the vehicle completes 40 warm-up cycles without a non-emission related diagnostic fault occurring.

Diagnostic Aids

A simultaneous acceleration and application of the brakes may cause DTC P1814 to occur.

Test Description

The numbers below refer to the step numbers on the diagnostic table.

2. This step inspects the failure records for DTC P1814 occurrences.

Important: Reset Transmission Oil Life when you replace the fluid and the filter.

4. This step replaces the fluid and the filter. If DTC P1814 occurs more than once in the failure records, severe TCC damage may have occurred.