Thread: Trailer wiring - right hand indicator

Originally Posted by Road 2 Nowhere

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When I tested with multimeter at the 9 pin round on car that pin is not pulsing,
fault is upstream of there. I assumed fuse or the electrical component that causes the flashing but cannot find either behind the glovebox.

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Did you confirm that the pin on the connection side not getting power, or the wire on the backside not getting power?
Apologies for being pedantic, but it's very common for the screw connector on the wire side(back side of the pin) to fail in it's connection.
As you said you tested the pin, and not the wire ... you could easily have power at the wire, just not getting to the pin.

Very common problem on trailer plugs.

Originally Posted by AK83

Did you confirm that the pin on the connection side not getting power, or the wire on the backside not getting power?
Apologies for being pedantic, but it's very common for the screw connector on the wire side(back side of the pin) to fail in it's connection.
As you said you tested the pin, and not the wire ... you could easily have power at the wire, just not getting to the pin.

Very common problem on trailer plugs.

D4 plugs are bonded, they dont come apart at the wiring connection...