Quote


It never hurts to check the vehicles wiring.

There are several diodes in the dash that connect warning lights to the sense wire. The diodes prevnt a back feed of voltage once the vehicle is running. If one was shorted sure what I'm not sure what would happen. The EGR, brake and charge light all tie into the switched voltage.

Make sure the brake bulb and charge bulb is lit when you turn the key to the run position but before the motor is started.



I checked the connections - no obvious issues either visually or by multimeter.

As far as the dash lights are concerned, they all work as intended, with the exception of the brake light which recently has been staying on after the handbrake is released and until I've travelled 2-3m. I'm chalking that upto a questionable switch. The remaining dash lights are OK and I'd expect them all to glow if the sense wire was an issue. On top of that, the brake warning light needs to operate whether the engine is running or not.

My wiring diagram shows an "alternator relay" in parallel with the sense line, which I think functions to kick start the unit in the manner you describe. I don't think it draws through the bulbs.

BTW, I just located the spec sheet for the 2nd unit. 110A at6k. At least that one lasted nearly 10k...

Paul