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Car electrics
- Thread starter Caran15
- Start date
Hi welcome to the forum.
You will only get power at pins when that particular function is operating, so for example road light circuits will only be live if the road lights are turned on, on the car.
Power for charging battery or the fridge will only be active when the engine is running. I could be corrosion on the connector.
If that has been the case and you are still getting nothing, then there is a problem somewhere in the cars circuitry.
Unless you are competent with electrics I suggest you get it checked and repaired by a professional
You will only get power at pins when that particular function is operating, so for example road light circuits will only be live if the road lights are turned on, on the car.
Power for charging battery or the fridge will only be active when the engine is running. I could be corrosion on the connector.
If that has been the case and you are still getting nothing, then there is a problem somewhere in the cars circuitry.
Unless you are competent with electrics I suggest you get it checked and repaired by a professional
Hi Caran15,
I assume you are testing the tow bar electrics by plugging the caravan and checking the lights?
The only common connection to the lighting is the earth wiring. This is the white wire on pin 3 of the 13 pin plug. This is a permanent connection (not switched) and should be easy to check with a multimeter set on a continuity. Testing between the car chassis and the pin should read very low resistance (less than an ohm ideally).
I hope that helps a bit.
I assume you are testing the tow bar electrics by plugging the caravan and checking the lights?
The only common connection to the lighting is the earth wiring. This is the white wire on pin 3 of the 13 pin plug. This is a permanent connection (not switched) and should be easy to check with a multimeter set on a continuity. Testing between the car chassis and the pin should read very low resistance (less than an ohm ideally).
I hope that helps a bit.
Possibly blown fuses on the +ve battery terminal.
If it is blown fuse, it raises the question of what has caused it blow when the trailer has not been connected!
Obviously.
Another thought, it’s likely the smart relay is powered up by a switched (ignition) feed. I’ve seen all kinds of contrivances (lash-ups) to obtain this, most often by piggy backing a fuse in the fuse box. Look for an extra fuse on a wire hanging out of the fuse box.
Another thought, it’s likely the smart relay is powered up by a switched (ignition) feed. I’ve seen all kinds of contrivances (lash-ups) to obtain this, most often by piggy backing a fuse in the fuse box. Look for an extra fuse on a wire hanging out of the fuse box.
