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by mkgray59
15 Jul 2015, 18:15
Forum: 240, 740, 760, 780, Bertone, 940, 960, V90, S90
Topic: Multiple codes 1997 volvo S90
Replies: 5
Views: 1376

Re: Multiple codes 1997 volvo S90

Update 3 solenoids ohm out at 12.9
TSP voltage 0.5 to 5.2 volts DC while manually moving throttle.
Speed sensor on the transmission checks good as compared to old speed sensors. Pulled TCM cleaned connecters with deOxit. Reinstall still the same codes.
I believe its the TCM. Any thoughts?
by mkgray59
15 Jul 2015, 07:25
Forum: 240, 740, 760, 780, Bertone, 940, 960, V90, S90
Topic: Multiple codes 1997 volvo S90
Replies: 5
Views: 1376

Re: Multiple codes 1997 volvo S90

Thank you for the quick reply. I will ohm out the B selonoid and then check the ABS module solder joints and clean connections at the ECM and TCM next.
by mkgray59
14 Jul 2015, 08:06
Forum: 240, 740, 760, 780, Bertone, 940, 960, V90, S90
Topic: Multiple codes 1997 volvo S90
Replies: 5
Views: 1376

Multiple codes 1997 volvo S90

I have PO500,PO755,PO705 code.
Both speeds sensors are new, PNP switch is new. Common thread seems to point to TCM. Car starts and runs great, especially after resoldering the instrument cluster. Any advise would be appreciated.
Thanks Mike