PA challenger wiring diagram - HELP

[Duggan84]

Does anybody have a wiring diagram for PA challenger for engine/immobiliser circuits? any help would be appreciated

[themage21]

Hey mate,

I have a PA and I bought the workshop manual from ebay. Costs about $15 bucks and should help you out.

The only issue is that it depends on the ECU, as there were a few models and a major change occurred around 2003 (I believe) where they changed from a 16bit ecu to a 32 bit ecu and all the pinouts got scrambled.

The workshop manual that I've got a hold of is sourced from the US and uses the new ECU as it is based on the 3.5l version that they had there.

The immobiliser computer in the later models (possibly the earlier too, but I have an '04, so that's where my experience lies) is separate to the engine ECU, which can cause issues when changing keys and/or ECUs as people often dont' sell them as a pair. They can be re-paired by Mitsu using a MUTII or MUTIII unit (depending on the year), which comes at a cost, but it gets the truck moving.