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 [09/2014 - ]: Procedure

1. Connect an oscilloscope to the power management control ECU terminals specified in the table below, and measure the waveform.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   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

2. Turn the power switch off.

Result:  B

B 

ELIMINATE CAUSE OF NOISE 

Result:  A

A 

See step  2

See step  4Refer to PROCEDURE - Step 4

Result:  NG

NG 

CONNECT SECURELY 

Result:  OK

OK 

See step  3

See step  3

Result:  OK

OK 

REPLACE OIL PUMP MOTOR CONTROLLER 

(See service information). Refer to REMOVAL [09/2014 - ] )

Result:  NG

NG 

CONNECT SECURELY