2004 Infiniti G35 U1000 and P1065 Error: No Crank, No Start - Diagnosis Steps
I own a 2004 Infiniti G35 sedan. The vehicle was running normally until one day I attempted to move it by jumping in, but my truck was parked behind it. After shutting off the G35, I moved my truck and since then, the car has not started at all—no crank, no start. The onboard diagnostic system shows error codes U1000 and P1065. I've already had the ECU tested (and it passed), replaced the starter, checked all fuses and relays, swapped out the battery and the negative ground cable with no success. I’ve thoroughly inspected the wiring harness and grounds—no loose connections or damaged wires were found. Even removed the dashboard to clean and retighten all grounding points. Despite these efforts, the car remains completely unresponsive. I'm now at a complete loss and need help identifying what could be causing this issue. Any insights or troubleshooting steps would be greatly appreciated.
Check out http://www.bbbind.com/free-tsb for a free wiring diagram—this can help identify potential signal paths. Since the vehicle shows no crank, start by verifying that the Integrated Power Distribution Module (IPDM) is receiving correct inputs and sending proper outputs. This component often plays a critical role in engine start commands.