What should I do to permanently fix these car problems? I was called to another garage to fix a 2005 300c chrysler. The problems of the car was Hard or no start, red lightning bolt flashing, no throttle response, headlight stays on, immediate stalling after start and rough idle while idling. Old PCM was replaced with a new one however problem still persisted. I scanned for DTC codes and saw a P0340, P2167, P2166, P2115, P2116, p0603 and more module codes like C2202, U0168, U1414, B1A25, etc.
The major problem is that whenever the red round light probably, the security light, if it remains ON, the car won't start at all however even if it does start by chance, the car would definitely stall immediately. On the otherhand , if the red perhaps security light blinks and battery light goes off, it will have only hard starting but would definitely start. Firstly, how can I fix the security issue? It's a v6 2005 Chrysler 300 with automatic transmission. The client said: "he doesn't want anything security in the car anymore." How should I proceed to disable that security completely? It's because of that that made the engineer encourage them to get a new ECU. Please🙏, help me with the repair procedure and also wiring diagram showing power distribution layout identification for the engine bay and rear fuses. Watch the video below to see what I'm trying to explain. https://youtu.be/nFA5iHxwX_c and https://youtu.be/omRXM_SU0OI