The wiring and connectors are on these cars are high quality and robust, if you don't see damage and/or corrosion, I would look away from that. It sounds more like a software issue - the Electronic Throttle Body system (ETB, ETM, or ETS) actually shuts off the throttle pedal response if it detects b...

First time I read of such issue, so no clue but I would look at the CEM while there, your 04 was prone to water ingress - just with a flash light it will show if it has water marks on the unit. Not saying this is the problem, just another thing to check

The thread below may be useful for you...

2001 XC70 BLOWING FUSE#8 AND ACCELERATOR CUT OFF WITH BRAKE:

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