The rear wiper on my 1.2 HTP recently stopped working. I'm getting 12V between pins 1 and 4  on the connector and the motor moves if I apply 12V directly to it. I've looked at the circuit board in the wiper housing and can't see any obvious signs of damage or anything blown. Apart from getting a whole new motor enclosure is there anything else I could test or replace? 

Hi Andy, can you post a photo of the circuit board? 

Sure, I've attached them. I also checked the voltages again. With the ignition on and wipers off: 12V between pin 1(black) and 4(brown), 3.5V between 2 and 4, 3.5V between  3 and 4. With the rear wiper switch on: 0V between pins 2 and 4 and 0V between and 3 and 4 (measured as the input wires). 

 

I couldn't feel anything loose or obviously damaged on the board.