Hi,
I've got a couple of problems with my Mk3 Cavalier (a '95 2.5GLS).
Firstly, the rear windscreen/door mirror heaters aren't working. When the button is pressed absolutely nothing happens - no light, no click of a relay, nada. The fuse is OK and there's 12V getting to the fuse terminals. The wiring diag in the Haynes says there's a relay for it, but doesn't mention where it might be found. Is the switch and the relay one and the same? There's 6 pins on the relay in the manual, but only 5 on the switch. If the switch is just a switch, where is the relay?
Secondly, I went onto a dual-carriageway today in 2nd and accellerated fairly hard. As I changed up into 3rd the engine management light came on, shortly followed by the airbag warning light. I pulled over fairly soon after and as the car came to rest the lights went out. I switched off and on, but the lights came back on after I started moving. While I was travelling I dropped the car into neutral, and let it coast. As the revs dropped under about 1000 rpm the lights went out. They came back on when I revved the engine a bit. After the car stood for a few hours I drove back and the lights stayed off.
I shorted the 2 pins on the ecu plug thingy, and the code I read off the flashing dash light was 4-9, which according to this site:
A few weeks ago I was getting a flickering alternator light on the dash (it went away 'all by itself'), so I'm beginning to think it may be time to get a new one. I've checked the charging voltage with a multimeter and it's about 11.5V which seems a bit on the low side.
Does anyone have any suggestions??? How much is a new alternator likely to be if required?
Thanks in advance,
Iain