Thread: '99 D2 Td5 Auto trans warning lamp - intermittent blink

Originally Posted by Graeme

IIRC the sensor was only fitted to V8 autos but I fitted one to my TD5 manual.

Good call, the one I've got with a sensor in it is from a V8 auto. Interestingly the loom in D2a TD5 didn't have the wiring from memory.

I tried to replace a faulty loom in the D2a and it was somewhat different to the earlier V8 I wanted to use.

So, I followed up on the advice in relation to the unused sensor wiring at the Transfer box that hooks into the auto trans oil temp warning light... (with thanks to Arthur and Graeme).

Frankly, I wasn't expecting much to come of this, but thought it made sense to follow Graeme's advice that dirt build up in the unused plug/s can lead to an incorrect warning, and so I pulled them down from on top of the box and gave them a good clean, and even put some electrical tap on to close them up.

That was yesterday. Today I decided to a proper test, so I connected my tandem trailer and collected a load of bricks about 25 mins from home. The return trip with bricks included extended hill climbs... and, I have to say, no blink at all in warning lamp! This is the first drive (with or without trailer) that I didn't get a blink in a couple of months. So fingers crossed.

Oh, and as soon as I got home, I pointed the laser temperature gun at the auto box, and the highest reading I could get was just under 90 deg C (on the upper part of the casing).

Thanks again for all the help, and hopefully this one is ticked off.

Myles