Pinpoint Test Y: DTC P0868, P0869
- Normal Operation and Fault Conditions
The PCM monitors the transmission fluid pressure at all times to ensure proper transmission operation. It sets a DTC if it detects low pressure.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition PCM P0868:00 Transmission Fluid Pressure Low: No Sub Type Information The PCM detected multiple clutch stuck off diagnostic trouble codes (DTCs). This DTC may set in conjunction with P0751, P0756, P0761, P0766, P0771 or P2707. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again. PCM P0869:00 Transmission Fluid Pressure High: No Sub Type Information The PCM received a high reading from the clutch B pressure sensor on 2 key cycles. When this DTC sets, the failsafe logic disables 4th and 6th gears and limits RPM in R. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again. Possible Sources
- Transmission fluid contamination
- Pump failure
- Y1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- Using a diagnostic scan tool, clear the DTC for the PCM.
- Road test the vehicle.
- Using a diagnostic scan tool, carry out the PCM self-test.
Is DTC P0868 or P0869 present in the PCM?
Yes PERFORM the line pressure test. REFER to: Special Testing Procedures . No The fault is not present at this time and may be intermittent.