Chubby M

I'm in a pub now, under the banner of "networking in London"... New Lucas switch ordered, arriving 2 April. Will update you all, HUGE THANKS!

First off - huge thanks to everyone for your help on this.... especially @FridgeFreezer, @Snagger, @mat2495 Hi all, having spent a good portion of today with test lamp and volt / resistance meter, the below are the data I found and also extracts from @FridgeFreezer using his great wiring diagram extract, plus Mat2495's diagram too. Based on what I’ve read, I think the issue looks to be: No feed at the column switch on the LGN (Light Green, brown trace) with ignition on or off, except when then Hazards are ON. I’ve been able to trace an LGN / LG / Green feed as below. Am I right in concluding the Hazard switch must be shutting off the LGN feed when the Hazard is OFF? Is there anything else that might cause the below? Extract @FridgeFreezer Also, the fact the hazards work just indicates that the flasher is OK and the hazard switch works in the "on" position, it could be cutting power to the flasher when switched "off" so you need to check that. Hazard switch OFF you have ignition-switched power from the dark green wire onto the light green wire to power the flasher unit when the ignition is on. The output from the flasher unit goes on a light green wire with brown stripe to the column switch. Hazard switch ON you have permanent live from the purple wire to the light green wire to power the flasher unit when the ignition is OFF. Looking at power on the Light Green, Brown trace on the column stalk; Ignition off / Hazard ON Ignition off/ Hazard OFF Ignition ON / Hazard ON Ignition ON / Hazard Off Feed (LGN wire) 10.8v 0 10.8v 0 Having looked at how the Hazard Switch is working. Testing for voltage on the loom connector terminals (connected to the hazard switch); Wire Ignition off Ignition On Ignition ON / Hazard ON Ignition OFF / Hazard ON Purple 13.3v 13.1v 13.1v 12.9v Dark Green 0 12.9v 12.6v 0 Light green, Brown trace 0 0 12.1v 12.1v Looking at the Flasher unit and feeds into / out of; Wire Ignition off / Hazard ON Ignition OFF / Hazard off Ignition ON / Hazard ON Ignition ON / Hazard Off Light Green, Brown trace 10.8v 0 10.8v 0 Light green, no trace 12.6v 0 12.6v 0 Light Green, purple trace 12.6v 0 12.6v 0 Any suggestions / comments very much appreciated. Huge thanks as always......

Thanks for this, will keep digging... thanks for the responce.

Much appreciated - I'll keep digging and look at the two tests you not re Hazards On and Off... thank you for taking the time to offer help...

Afternoon all, and huge thanks for the input thus far. Having spent another few hours with volt meter, test lamp etc... the position is; 1. Hazards are 100%, relay working, all 6 lights (incl. 2 repeaters) work, no issue. I've checked all the connections to the harness, nice and tight and clean. 2. 12.5v present at the column switch (purple - see image) on all three ign stages incl. no key. This is the new column switch. 3. Positive feed is present (12.5v) at the relay (evidenced also with hazards working). Relay is new (last 6 months or so). 4. Removing the hazard switch I can short (using fused wire link) the perm feed to each side (left and right) and get a permanent light. Nothing available still from the stalk...... (at least the horn works on the end of the stalk 🙂) I'm perplexed and have no idea where to go next with this one... I have prayed to the Land Rover gods for mercy, but I now convinced this truck is haunted.... Any ideas please? What am I missing please chaps?

Great many thanks, will take a look tomorrow....

Many thanks and a very fair point 🙂

Hi @mat2495 The switch is a new replacement, changed this over a few weeks back when diagnosing the hazard circuits.

Thanks @western Its a brand new stalk, all the connectors were tight when I fitted. I also checked and cleaned the rubber connector pins (what a game that was pulling that apart!!!!).

thanks @Snagger I'll check this...

I'll check this - would you know what colour the ignition live wire is please? -purple. I'll check.

My call out here was to @LandyManLuke for his superb diagnostic as noted above.

Afternoon gents. After 8 years of ground up rebuild I'm just about ready to get an MOT and get back on the road - BUT..... bl**dy indicators!!! I've used the superb online materials from the forum history (including from 2008), to diagnose between the hazards and indicators (Sorry but I cannot remember the original contributors). I've spent about two weeks trying to find the issue but have failed completely...... - So hers goes with the issue I have; 1. Hazards on (no key, Ignition position 1 or 3) - all lights and repeaters flashing and working 100% - therefore all feeds to the bulbs and the flasher unit are ok. 2. With the hazard switch unit off I can force a feed to either side of the truck, again confirms no issue with the light units. Using the purple perm feed and a fused link to either Left (Green / Red) or Right (Green / White). 3. I've checked every fuse I can find including the in cab fuse for indicators (10A, left side, second from bottom) (see picture) - to confirm this is ok I used a resistance meter and also this fuse feeds the brake lights - these work 100%. 4. Indicators Left or Right (no key, Ignition position 1 or 3) - no feed at any unit. My conclusion - must have been a column mount stalk / switch issue. 5. Blue box company replacement (£35) fitted - feeling super confident that its all done - BUT NO..... 6. I can trace feeds to the stalk but cannot find a break that stops the indicator circuits (both sides) working. Worth noting all other electrics are 100% working, just the indicator circuits that are failing. Any help hugely appreciated as this feels like my last hurdle before getting back on the road...

Hi all, so a follow on from the extremely helpful thread and a "confirming my conclusion" type question: I think my hazard switch is faulty because: When I remove and bypass the switch and link Perm Supply to Left or Right indicators - they light per side, as expected (no flashing) When I remove and bypass the switch and link Perm Supply to Supply to Flasher - the stalk works per side, and I have left or right flashing indicators Therefore: Stalk is ok, loom and loom plug is ok and flasher unit is ok (its a new replacement). I then turn on the ignition and bypass the switch replacing the Perm feed for the Light switch supply - both tests repeated and all 100% correct. Then, when I connect the switch (its a new one - hours old, replacing the original faulty unit); Ignition off, hazards on - 100% fine, all flashing merrily away. Ignition on, hazards on - 100% fine Ignition on, hazard switch off, left indicator stalk selected - Not good: all lights flash (as if hazard switch on) ignition on, hazard switch off, right indicator stalk selected - Not good: all lights flash as above. So, I see no other route than the switch, frustrating as its new (not a blue box item). Is there anything else I may have missed? Daft question but is there more than one type of hazard switch? My truck is an 1986 110. The replacement switch can from AllMakes4x4, ref. YUF101490 On the plus side, While in the spaghetti of wiring I have got all the side, main and ancillary lights working... thats a massive step forward. Could finish the build this year (year 7 as my wife reminds me constantly).... Any suggestions gratefully received. Chubby

@LandyManLuke I've been struggling for a day on the indicators so thought I'd try and find some help.... And here it is.... Huge thanks to you for taking the time to pen this article, I'm working through it now step my step... Again the value of a community, Chubby.