21 replies to this topic

[monkeymonk]

Morning chaps & chappettes!

 

I seem to be having a problem with my hazards and indicators. None of them are working!

 

I had to pull over due to getting a bit lost, so i put my hazards on... they worked for about 20 seconds, then just died. I've changed the hazard relay and the flasher relay with no joy. The flasher relay under the dash constantly clicks (very fast) when i put any indicators on.

 

Any idea what this could be? I've checked as much wiring as i could and I don't see any nicks or snags.

 

Thanks,

Sam

 

 

[cal844]

The relay clicking faster than usual means as bulb is blown or you have a wiring issue, have you changed the switch??

[Mr Dave]

Short to earth (i.e bodywork)?

[monkeymonk]

The relay clicking faster than usual means as bulb is blown or you have a wiring issue, have you changed the switch??

 

My first thought... checked all the bulbs but all are okay. I haven't changed the switch though!

 

Short to earth (i.e bodywork)?

 

I've traced as much of the cables without taking everything apart, and can't see anything causing a problem

Edited by monkeymonk, 13 April 2015 - 02:39 PM.

[monkeymonk]

Just changed the hazard switch with no joy

[KernowCooper]

Volt meter time to check the connections in and out of the switch, onto the stalk and then out to the lights, paying attention to the voltages in and out of the components

Attached Files

•  Indicator-Hazard Wiring MK4.png   75.52K   22 downloads

[monkeymonk]

Volt meter time to check the connections in and out of the switch, onto the stalk and then out to the lights, paying attention to the voltages in and out of the components

 

Thanks! I shall have a ganders this evening.

[monkeymonk]

I'm getting 6v into the indicator stalk... That's not right is it?

[KernowCooper]

Not unless the battery is flat, you should get battery voltage to the stalk, have you back tracked it to the flasher unit and checked the feed there

Edited by KernowCooper, 20 April 2015 - 05:19 PM.

[monkeymonk]

Battery is fully charged.

 

Getting 12v at flasher unit... but when i put the hazards or indicators on the voltage goes rather erratic. When i switch them off, the voltage doesn't rise to 12v. I have to remove the flasher unit to get the voltage back up.

 

I will be checking the wire from the flasher unit to the stalk

Edited by monkeymonk, 20 April 2015 - 06:29 PM.

[KernowCooper]

Join the 2 wire together you removed from the flasher unit and recheck the voltage into the stalk, if you have battery voltage then into stalk the wiring is ok, if your getting a reduction in voltage after putting the lights on it points towards a bad connection with a high resistance in the circuit. check it at all the points in my diagram above.

[monkeymonk]

Joined the two wire... getting battery voltage at stalks. Green/Red wire has battery voltage when ignition is on or off. Green/White has battery voltage when ignition is on or off.

 

When ignition is off, if i move indicator up or down, the Green/Brown wire gets battery voltage. Same thing happens with ignition on.

 

My wiring looks to be of a later mini.. the flasher unit and indicator relay both are earthed.

 

This is confusing me to the max!!

[ChopperHarris]

was the hazard switch new? They are notoriously troublesome

[monkeymonk]

was the hazard switch new? They are notoriously troublesome

 

I've tried a total of 2 with no joy

[monkeymonk]

I've also discovered that the indicator relay clicks once when i remove the green wire from the fuse box and clicks again when i re connect... is this normal?

Edited by monkeymonk, 04 May 2015 - 07:54 PM.