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P1633 Diagnostic Trouble Code Discussion for June 2009

TCM Internal - Test External Watchdog Performance

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Trouble Ticket Help Requests for DTC P1633
Help Request Posted
1999 Volvo V70 X/C AWD 2.4L MIL Lamp on VIN: YV1LZ56DXX
P1633: . hi iatn members, ihave this volvo here that i don't have alot of information on the codes listed. the guages don't work and the ets light is on and the car runs rough. just wondering if these could all be related to the same component or if this is something c...
June 01, 2009