gookah wrote:check/disconnect bonnet switch. Its a common cause
colb wrote:I would check the hazard switch sounds like it might have developed an internal fault, disconnect the switch and try a known good one to see if that solves the issue.
pingu wrote:Your alarm is going off, but your siren isn't sounding. That's why the hazards are flashing.
I had the same problem. Here is a temporary fix that will allow the car to be moved to a place of safety ...
Note: This will stop the hazards from flashing and is an MOT failure as the car is post-1986.
Or you could just disconnect the EWS module and use a key for the doors. You won't have an alarm, but you will still have an immobiliser, as it is a separate system linked to the engine via the key in the ignition.
Snipps30 wrote:I initially thought the siren wasn't working but I opened the car with the key without pressing the fob & it set off the alarm siren.
pingu wrote:Snipps30 wrote:I initially thought the siren wasn't working but I opened the car with the key without pressing the fob & it set off the alarm siren.
If the siren works with the alarm, then it could be the crash module.
AFAIK, there are three ways to turn on the hazards...
1. The switch
2. The alarm
3. The crash module
or possibly a 4th, a short in the wiring to supply the hazard relay.
Use Find "crash" and its location is shown on page 310 of the pdf document (7100.0-19 of the wiring diagram)
Snipps30 wrote:Hi Zeds,
I've owned a few Z3's many years back before getting a Z4 (now long gone)
Anyways, decided to revisit the Z3 and took the plunge buying a "fixer-upper" a few wks back with the idea of rescuing this little fella from the scrap yard.
I drove this car 150(ish) miles home having only seen it on the dark. It had stood still for sometime & limped back feeling a little under the weather.
Once home at 1am I parked the boyo in my garage, window down (to air it) & went to bed. Next day I opened the garage to find the hazards blinking. Thinking the interior sensor had been triggered with an open window I unlocked & locked the car but it didn't stop. I tried disconnecting the battery hoping it would reset but it continued. To stop it, I've had to remove the hazard relay and I obviously have no indicators.
I've had this car interior to pieces now (fully stripped to dry out) and reassembled. I've checked brakes in preperation for its MOT but after reconnecting everything I still have this issue with the hazards.
During my investigation I discovered my passenger seat electric motor was faulty causing a battery drain which was cured temporarily by disconnecting the seat. The alarm system arms & goes off with siren if use the key to unlock but I'm unsure if they have an interior sensor that detects movement.
Has anyone had this issue before with hazards refusing to switch off?
Any ideas would be greatly appreciated as I'd like to MOT this car this coming wk.
Thanks in advance
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