Code 52

This DTC does NOT flash the CHECK TRANS indicator and does NOT set the BACKUP MODE.

CIRCUIT DESCRIPTION:
- When the driver presses the accelerator pedal down fully, the kick down switch closes, sending a ground signal to the Transmission Control Module (TCM).
- This information is used to do shifts with a high Engine Speed RPM.
- When the kick down switch is closed the Throttle Position Sensor (TPS) is already at 100%.

DIAGNOSTIC AIDS:
- This diagnostic is not an electrical test done by the TCM but a test between different information ("logic test").
- Detection conditions:
- Kick down switch ON (short to ground) and TPS <70%.
- No malfunction: TPS short to voltage or ground (DTC21 and DTC22).
- The conditions need to be present for at least 1 second.
- Action after the detection time: Kick Down information not taken into account.
- Recovery conditions: To recover, Kick Down needs to be seen as OFF during detection time.