PCM testing consists of verifying that the PCM boots up, activates the Glow Plug Relay or Module, Fuel Pump, Injector Driver Module, receives a Cam Position Sensor signal, commands the IDM to fire the injectors, activates the appropriate transmission shift solenoids in response to moving the range selector lever, connects to a scan tool, and that it transmits the correct sensor values.
Signals such as the Injection Pressure Regulator and Electronic Pressure Control are also checked with an oscilloscope. After testing, we will contact you with our findings, and suggest additional troubleshooting steps if the PCM tests good.
If you are running a performance chip, please send it with your PCM. There is no extra charge to test your chip with your PCM. Do not send the cable or switch.
*Complete and include this form when sending in your PCM