Where do you find the wiper wash relay on a 306 Peugeot?

Peugeot 306 Mk 1

The rear wiper relay is mounted on the motor support bracket.

The front wiper relay is hidden behind the fuse box in the drivers footwell. This is a nightmare job so check everything else first, motor etc. To remove the relay , disconnect the battery then you will need to partly remove the fuse box by pulling out the red tag on the left of the box and ease it forward taking care not pull any wires out of the fuse connectors. Ease the fuse box towards you and twist it gently anticlockwise so that you can see behind it. You will see a blue relay tucked to the left of the jumble of wires. If you pull the carpet flap above the accelerator pedal down, you will be able to insert one finger below the relay holder. As it almost impossible to remove the relay from where it is positioned, you can make the job easier by releasing the relay holder from the body fixing by placing a flat bladed screwdriver between the holder and the plastic fixing clip. Twist the screwdriver and spring the holder away. Using your one finger from underneath and another (or screwdriver) from the fuse box access you should be able to manoeuvre it towards you, relay first and then remove it. On replacement, simply nest it back where it was originally and don't bother with clipping it back. You won't be able to and in any case, it is not going anywhere. Replace the fuse box and remove all those unpleasant thoughts about Peugeot designers from your mind as you will just have just saved yourself a lot of cash.

The relay contains a timer chip type U642B which is a bi-polar integrated circuit designed for the wiper and a web search for the chip should reveal the circuit.

FULL SPEED WIPERS ONLY?

A recent fault I came across was that I only had full speed and no park or mid speed. The problem was not the relay but the white connector into the motor body had fractured inside the nylon insulator block on the motor housing. The answer was to remove the broken connector, drill a hole through the nylon connector path to allow the brass tag to go in further and then solder the break. You can test the motor by applying 12v to the red wire (full speed) and then to the white wire (mid speed). Black is ground. The other wires go to the sweeper switch for wiper parking.

I believe the following relates to a later model.

Look at all the black relay boxes, the wash wipe has 6 connectors/wires and looking carefully you will see on the relay at each connector the numbers 2,1,4,6,8,5 in that order - this is for pre April 1997 Post April 97 a blue box, 6 connectors numbered 2,5,8,6,1,4