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stuj
04-06-2015, 03:25 AM
Just replaced the marelli resistance film position sensor with the sacer magnetic pickup. The film was worn and was giving an intermittent fault. A good fix with a great outcome.

I had an old throttle body with a white label so don't need new firmware. Anyone have any idea if new firmware is required? Everything works fine so assume it is not needed.

stuj

howardc64
04-06-2015, 04:13 AM
What year is the car? and when was last firmware update?

I had an early build 01 T5 that got a dramatically smoother shift TCM software update back in 05. My later build 01 V70XC got the same update but wasn't nearly so different.

Volvo did update the ETM software around back then too to combat the worn film resister problem without much success.

Volvo US provides free software updates (awhile back with different service levels at different dealers). You might check that for AU.

stuj
04-16-2015, 07:15 AM
All working fine with no firmware update. My car is an 01 xc70. My etm had a yellow sticker an apparently no need for firmware upgrade. The film resistor was warn out an defiantly a problem, the vidas check indicated this.

Stuj