P128B-TCM POWER CONTROL CIRCUIT 2 LOW - TIPM





For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    With the ignition on. Battery voltage greater than 10 volts.

  • Set Condition:

    A shorted condition is detected in the Transmission Control Output circuit.


Possible Causes
  
(T16) TRANSMISSION CONTROL OUTPUT CIRCUIT SHORT TO GROUND
  
(T16) TRANSMISSION CONTROL OUTPUT CIRCUIT FOR AN OPEN
  
TOTALLY INTEGRATED POWER MODULE (TIPM)
  

Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - CVT - STANDARD PROCEDURE)



Diagnostic Test

1.CHECK IF THE DTC IS ACTIVE




Are there any Speed Sensor or Transmission Range Sensor DTCs present?

Yes
  • Refer to the transmission category and perform the appropriate symptom(s).


No
  • Go to 2

2.CHECK IF THE DTC IS ACTIVE




Is the status Active for this DTC?

Yes
  • Go to 3


No
  • Go to 6

3.CHECK THE (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT SHORT TO GROUND






Is the resistance below 5.0 ohms?

Yes


No
  • Go to 4

4.CHECK THE (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT FOR AN OPEN






NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.



Does the test light illuminate brightly at all the (T16) Transmission Control Output circuits?

Yes
  • Go To 5


No

5.TOTALLY INTEGRATED POWER MODULE





Were any problems found?

Yes


No

6.INTERMITTENT WIRING AND CONNECTORS






Were any problems found?

Yes


No
  • Test complete.