Eek! Transmission Service (engine codes P0717 and P0700) Hel

[Cuba]

Old thread I know. Thought it might be helpful to share my experience.

first I had the transmission fault come up and car went into limp just as I pulled in the driveway. I have a Stahlcar BT adapter so pulled the codes immediately... P0717, P0700. Did a web look up and such, logged fault and cleared them. Input shaft speed sensor no signal)

Drove car faultlessly for about 3 weeks then drove faultlessly 450km to Christchurch. Next morning it faults straight away.

Archibalds Volvo in Christchurch had 1 in stock for a small fortune. Even the parts guys have cuff links and designer glasses.

Anyhow, the new sensor is the plug in type and mine is the harness. No problem I just cut the old one off and soldered the new one on and slid some heat shrink down. Careful though, the poles are opposite to the original orientation. Basically opposite pole to what would seem logic.

Best to take the airbox out. Use a 10mm socket on the end of a long extension to compress the retainers.The polarity is the opposite of logic for the shaft output sensor. It's not green to the retainer side, it's other one.

The long and the short of it is that it's pretty easy and you just have to nut out the logic, write things down and think about the science. It was trial and error for the most part.

"Turbine speed sensor (TSS)
Known as an input speed sensor (ISS). This sensor sends a varying frequency signal to the TCU to determine the current rotational speed of the input shaft or torque converter. The TCU uses the input shaft speed to determine slippage across the torque converter and potentially to determine the rate of slippage across the bands and clutches. This information is vital to regulate the application of the torque converter lock-up clutch smoothly and effectively"

If anything, don't be afraid to perform this task. It's just a regular fault finding mission.