I'm hoping someone has an idea. Looks like I am having a cold start issue I have an 05 G3 AT with 50k miles. The car below freezing will not start. Yesterday, morning it did not start got home from work in the afternoon started right up no fluctuation.

Checked the battery voltage no load was 12.7 - 13.0 V. On full load spiked to about 13.7 - 13.9 V. After shutting down went back to around 12.7 V. Kind of rules out both. No dimming of lights with battery when engine is off.

Checked all fuses full current going through them no burn marks at all. Checked the IPDM body no cracks or anything. Battery housing cover is clean no water collection. Don't see any grounding issues or cut wires.

When the car did work no idler issues or powerband traveling. So I am thinking the cam sensors are fine.

Bottom line is I think the IPDM is on its way out.

Ideas????? If it is the IPDM what kind of $$$ am I looking at?

Thank you