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P1603 Diagnostic Trouble Code Discussion for August 2004

PCM Internal Shutdown Timer Rationality


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Trouble Ticket Help Requests for DTC P1603
Help Request Posted
2000 Volvo S80 2.9 2.9L Hesitation, Surge VIN: YV1TS94D3Y
P1603: throttle unit internal fault. ... head, but the nearest dealer is 500 miles away, customer came in with complaint of vehicle not running smooth going a constant 65mph and cruse won't stay engaged. test drove vehicle and confirmed complaint, vehicle hesitates sometimes or surges slightly. ...
August 04, 2004
2000 Volvo S80 2.9 2.9L Hesitation, Surge VIN: YV1TS94D3Y
P1603: throttle unit internal fault. ... head, but the nearest dealer is 500 miles away, customer came in with complaint of vehicle not running smooth going a constant 65mph and cruse won't stay engaged. test drove vehicle and confirmed complaint, vehicle hesitates sometimes or surges slightly. ...
August 04, 2004