What does code P0887 mean?
Error Code P0887 is defined as TCM power relay control circuit low. This is a generic trouble code, meaning it applies to all vehicles with the OBD-II system, especially those made since 1996 up to the present.
What is TCM relay?
The TCM power relay control circuit exists between the battery and the transmission control module, and protects the transmission’s computer from voltage irregularities. It also allows for a self test when the ignition key is turned on.
How do I check my TCM relay?
Check the control side of the circuit Remove the transmission control relay. Turn the vehicle ignition on and use a test light to check for power to the TCR. Connect the test light between the battery negative terminal and the relay control terminal in the fuse box. The light should illuminate.
What is an ECM relay?
What Is An ECM Power Relay? ECM stands for engine control module – the computer that makes your entire car function on its own. The ECM power relay monitors and delivers power to the ECM which in turn decides how virtually every other component in your engine runs.
How do you test a transmission relay?
The only tool required to check a relay is a multimeter. With the relay removed from the fuse box, the multimeter set to measure DC voltage and the switch in the cab activated, first check to see if there are 12 volts at the 85 position in the fuse box where the relay plugs in (or wherever the relay is located).
Is the PCM and ECM the same thing?
Most people, including automobile technicians, confuse the two for each other. The main difference between the two is that the ECM controls specific parts of the engine, regulating and sending commands. While the PCM is used in newer models to control almost all engine functions.
What is the OBD II fault code p0887?
OBD II fault code P0887 is a generic code that is defined as “Transmission control module (TCM) power relay control circuit high”, and is set when the PCM (Powertrain Control Module) detects an abnormally high voltage (or any voltage at all) from the relay that supplies the shift solenoids with power when the transmission is operating normally.
How often do power relays resolve code p0887?
While steps 1 through 5 will resolve code P0887 in nine out of every ten instances, it does sometimes happen that an intermittent fault can make resolving this code definitively extremely challenging and time consuming.
What are the problems with the Chrysler 200?
Do not forget to read about Chrysler 200 problems, recalls and complaints . Find all the latest facts, figures and Chrysler 200 specs based on year, make and model. Chrysler vehicle history report may contain the following information: title problems, prior damages, unsafe salvage rebuilds, odometer mileage, theft, past sales.
How to check the power of the Transmission Control Relay?
Remove the transmission control relay. Turn the vehicle ignition on and use a test light to check for power to the TCR. Connect the test light between the battery negative terminal and the relay control terminal in the fuse box. The light should illuminate.