P128C-TCM POWER CONTROL CIRCUIT 2 HIGH - TIPM
For a complete wiring diagram Refer to Section 8W.
Possible Causes
|
(T16) TRANSMISSION CONTROL OUTPUT CIRCUIT SHORT TO VOLTAGE
|
TOTALLY INTEGRATED POWER MODULE (TIPM)
|
Diagnostic Test
1.
CHECK IF THE DTC IS ACTIVE
Ignition on, engine not running.
With the scan tool, read TIPM DTCs.
Is the status Active for this DTC?
Yes
No
2.
(T16) TRANSMISSION CONTROL OUTPUT CIRCUIT SHORT TO VOLTAGE
Turn the ignition off.
Disconnect the TIPM C10 harness connector.
Disconnect the PCM C4 harness connector.
Measure the voltage of the (T16) Transmission Control Output circuit.
Is the voltage above 10.0 v?
Yes
No
3.
TOTALLY INTEGRATED POWER MODULE
Using the schematics as a guide, inspect the wire harness and connectors.
Check the TIPM harness connector terminals for corrosion, damage, or terminal push out.
Pay particular attention to all power and ground circuits.
Were any problems found?
Yes
No
4.
INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors.
Look for the data to change or for the DTC to reset during the wiggle test.
Were any problems found?
Yes
No