DTC P0C2C-888: Auxiliary Transmission Fluid Pump Control Module Feedback Signal Range / Performance; DTC P0C2C-889: Auxiliary Transmission Fluid Pump Control Module Feedback Signal Range / Performance: Procedure
- CHECK POWER MANAGEMENT CONTROL ECU (CHECK WAVEFORM)
- Connect an oscilloscope to the power management control ECU terminals specified in the table below, and measure the waveform.
Item Contents Terminal A35-17 (TPST) - N91-6 (E1) Equipment Setting 5 V/DIV., 5 ms./DIV. Condition Power switch on (IG) TEXT IN ILLUSTRATION*a Rear view of wire harness connector
(to Power Management Control ECU)Result
Result Proceed to There are no interruptions or distortions in the waveform. (Amount of noise is small.) A There is an interruption or distortion in the waveform. (Amount of noise is large.) B - Turn the power switch off.
B → ELIMINATE CAUSE OF NOISE
A: Go to next step
- Connect an oscilloscope to the power management control ECU terminals specified in the table below, and measure the waveform.
- CHECK CONNECTOR CONNECTION CONDITION (OIL PUMP MOTOR CONTROLLER CONNECTOR). Refer to PROCEDURE - Step 4
NG → CONNECT SECURELY
OK: Go to next step
- CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR). Refer to PROCEDURE - Step 3
NG → CONNECT SECURELY
OK → See step 4
- REPLACE OIL PUMP MOTOR CONTROLLER. Refer to REMOVAL [03/2012 - ]