P0882
DTC P0882
Circuit Description
The transmission control module (TCM) requires direct battery voltage to operate properly.
DTC P0882 is a type C DTC.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P0882 Transmission Control Module (TCM) Power Input Signal Low
Conditions for Running the DTC
Engine speed is greater than 400 RPM for 5 seconds.
Conditions for Setting the DTC
DTC P0882 sets when the TCM detects a battery direct voltage below 8 volts at 0°C (32°F) for a total of 5 out of 7 seconds. The voltage threshold is temperature dependent varying from 5 volts at -60° C (-75°F) to 9 volts at 20° C (68°F).
Action Taken When the DTC Sets
* The TCM does not illuminate the malfunction indicator lamp (MIL).
* Hydraulic default is commanded. Shift selector position and hydraulic state of logic valves determine range.
* The TCM inhibits main modulation.
* The TCM inhibits torque converter clutch (TCC) engagement.
Conditions for Clearing the MIL/DTC
A scan tool can clear the code from TCM history. The TCM automatically clears the DTC from TCM history if the vehicle completes 40 warm-up cycles without failure.
Diagnostic Aids
* Inspect the wiring for poor electrical connections at the TCM. Inspect for the following conditions:
- A bent terminal
- A backed-out terminal
- A damaged terminal
- Poor terminal tension
- A chafed wire
- A broken wire inside the insulation
* When diagnosing for an intermittent short or open, massage the wiring harness while watching the test equipment for a change.
* You may have to drive the vehicle in order to experience a condition.
* A defective vehicle battery may allow this DTC to set. Test the vehicle battery to verify proper voltage and load capacity.
* A defective vehicle charging system may cause this DTC to set.
