Anyone know why my indicators would now only work on one side (passenger) and not at all on the drivers side? Even when the hazards are on, it's just the one side that works. I have checked the 10A fuses in the footwell, the relay seems fine. The bulb holders and wiring seem fine also. It's typical. Tomorrow is MOT time, and yet at the weekend they were fine!

Any thought appreciated.

There's a bell ringing in my head on this, someone else has had this recently I'm sure.

Pop out the hazard switch and reconnect it.

 

It's basically a three way control and if it's a bad or loose connection nothing will work.

Thanks. I have tried your suggestion with no success. Strangely I noticed the small bulb on top of the hazard switch was not on when the hazards were going. Have I a faulty hazard switch??

 

The symptoms exactly - indicators work fine on nearside. Indicators do not work on offside - front, wing and rear, and indicator relay is clicking twice as fast, which in my mind means there is a problem somewhere - not enough load or a short. With hazards on, only the nearside is working, but the hazard switch is not detecting a problem as it is clicking normally. All bulbs work as i have swapped them over with the nearside to check.

 

Any more thoughts anyone?

Thanks. I have tried your suggestion with no success.

 

The symptoms exactly - indicators work fine on nearside. Indicators do not work on offside - front, wing and rear, and indicator relay is clicking twice as fast, which in my mind means there is a problem somewhere - not enough load or a short.

 

Is it possible to swap the relays?

I thought there was only one indicator relay?? Is there two? If so where?

What else could control the indicators on one side of the car only?

There is only one flasher relay, your problem is likely to be an earth/ground issue, but firstly check the bulbs on the side that is out, then each short harness to each bulb. As long as the hazard switch is clicking in and out as it should then the switch should be ok, just make sure it sits in the plug all the way. The light in the switch should light, bulb likely gone. They are easy to replace, just lift of the hazard top, with the symbol on it.

 

Lastly the indicator stalk has been known to cause issue, a little switch cleaner may help.

Ultimately use a multimeter to detect a load at each bulb

Have you tried the indicators with the hazard switch disconnected ?

Still got this annoying issue and an MOT on Tuesday!

 

The bulb loads are pretty much 0.0 - 0.3v at the connectors on the front and side indicators. The indicator stalk I have cleaned and put back together. The relay looks fine - disconnected and replaced back in original position (cue back ache for later). Disconnected the hazard switch, no change, put back together. Checked all car fuses. No issues. Checked ECU just in case, Code 55. Checked all fuses under drivers footwell and harnesses. All OK.

 

Side lights work fine - and are on a connected loom. If it is a ground issue - where would the ground be located?

 

Running out of ideas. Anyone?

What did you do to fix the problem back in February when your front indicators didn't work but the rears did?

 

https://www.300zx.co.uk/forums/showthread.php?186822

 

Assuming the bulb is good, is the "right" green tell tale indicator working (between speedometer and tachometer)?

This all points a severed wire somewhere, you seem to of covered everything else.

From what i can gather you never have 12v at any point no matter what you do, hazards, etc, on the r/h side ?

So, the root cause - the loom that feeds into the relay under the steering wheel. Who would have thought? Bloody thing. So, a tidy up of the wiring loom and a clean of all the connectors and we have working indicators.

 

Thanks to all who helped diagnose - it's much appreciated!

Glad you sorted it, these kind of things are so annoying.