Ignition switch connector

Dirty fluid from lack of service and the metal is from wearing parts internally. Yes a flow gauge will tell if it is clogged.

Roy

No, none of that stuff works. You need an acid flush and under pressure. None of that stuff will break up or dislodge any debris.

Roy

Did you have the battery load tested? It sounds like low voltage.

Roy

P0882
Item Description
Symptom/DTC P0882
Descriptor
Tcm Power Input Low
Probable Causes
(T15) Transmission Control Circuit Open
(T15) Transmission Control Circuit Shorted to Ground
Powertrain Control Module (PCM)
Related Totally Integrated Power Module (TIPM) DTCs

Interruption?

That is either a low voltage issue as I stated before or a connection problem.

Roy

The temperature sensor is part of the range sensor.

Yes, they share the same connector.

Number two in the picture. The rest is the range sensor.

Roy

Diagram attached of the connector and pins.

If you have a scan tool, you can read the actual temp through the scan tool to see if it is working

Roy

Code reader is not a scan tool.

Check the resistance from the terminal to a good ground. Since it is a temperature sensor, it will vary according to temperature.

There is no chart for resistance according to temp that I can find. Thats why you need a scan tool to monitor the actual reading and compare to the temp of the fluid with a lazer temp unit.

Roy

Transmission temperature sensor:
The TRS has an integrated thermistor that the PCM/TCM uses to monitor the transmission's sump temperature. Since fluid temperature can affect transmission shift quality and convertor lock up, the PCM/TCM requires this information to determine which shift schedule to operate in. The PCM/ also monitors this temperature data so it can energize the vehicle cooling fan(s) when a transmission overheat condition exists. If the thermistor circuit fails, the PCM/TCM will revert to calculated oil temperature usage.

Calculated temperature:
A failure in the temperature sensor or circuit will result in calculated temperature being substituted for actual temperature. Calculated temperature is a predicted fluid temperature which is calculated from a combination of inputs:
- Battery (ambient) temperature
- Engine coolant temperature
- In-gear run time since start-up

Very possible. Wiggle the connector outside the transmission and see if you can recreate the issue.

Roy

A sensor work on 5 volts. The PCM will monitor that voltage as the sensor will create a resistance to ground. That is what the PCM looks at.

A voltmeter reading is not a test for this.

That is why you need a scan tool.

Roy