I'm experiencing a P0203 diagnostic code on my 2004 Chrysler Sebring. What specific parts should I replace or repair? Is it safe to continue driving the vehicle until I can get professional assistance? Any guidance on troubleshooting steps would be greatly appreciated.
I own a 2006 Jeep Grand Cherokee and recently received a P0203 code. My diagnosis points to a ground issue. After removing the driver wire from the PCM connector, where should I locate the ground connection? Is there a specific location or point on the vehicle that provides this grounding?
Engine ? all codes? Some confusion - the wire from #4 inj TO pcm IS GROUNDED? or IS THE pcm ALWAYS GROUNDING #4 ? #4 inj driver circuit is grounded SO unplug PCM; advise if the circuit is still grounded or is open. the PCM supplies the ground SO if the PCM is always grounding that circuit a new PCM is needed... DO NOT replace without confirming..
Check the injector circuit #3 (injector connector) for tight connections. Verify if there is 12V at KOEO (key-on, engine-off). Test for open circuits, grounding, or short to voltage on the signal wire. Measure resistance of the injector and compare it with other injectors; please share your results for further analysis.