Yamaha PAS XPC26 not working...

Karl Rowlands

Finding my (electric) wheels
Apr 28, 2014
6
1
47
It was, I had a puncture. I stripped it, re-shod the back wheel and reassembled it, didn't touch the power or PAS system, battery was off bike. The most I did was decouple the chain, and release the hub gear shift cable and roller brake cable.

Now, the power switch does nothing. No LEDs, no power at all. I've had a DMM across the battery, showing a none-too-shabby 26.2 volts.

I've stripped the panelling off around the motor..all looks dry, all wires look OK. Opened the switch/indicator unit - all clean and shipshape there too. Still dead as a doornail.

Anyone have any ideas? the pack output suggests that itself is fine..the pins it locates on are fine, the wires to those are firm and seemingly fine..am I missing a fuse or thermal trip somewhere that may have gone squiffy? All I can find is a flowchart for an Axion City..and it's a bit heavy going..heh.

The gears work, the brakes work, the bike itself works...but the power assist..she be broken...