Thread: Indicator relay part number(s)

I would be looking at your bulbs first.
Usually the indicator relay controls both directions, and a generic relay available just about anywhere does the job, as long as it has the same number of terminals.
Regards Philip A

Rave shows a separate relay for the left and right indicators. All the bulbs are working ok.

I had a look at RAVE and yes there are 2 relays, why I don't know. They must also be timed so are probably unique.
Maybe get a second hand one from Outback 1 or Bundalene.
Why does LR do this stuff?
and why connected to the BCU?
Regards Philip A

Land Rover Relays, Fuse Boxes, Connectors And Flashers

This site reckons that the relay is just a relay on this page about 10 down as it is also the A/c relay.
The timing/blinking may be done by the ECU.
If that is so any relay will do but it is probably not the problem.
Why not just switch them R to L and see what happens.
Regards Philip A

Originally Posted by PhilipA

The timing/blinking may be done by the ECU.
If that is so any relay will do but it is probably not the problem.
Why not just switch them R to L and see what happens.
Regards Philip A

Great idea to swap relays to check. Did you mean BCU or ECU? If the former, and it is the problem, then sounds like not a cheap fix.

Thanks for checking it out. I can't really follow those circuit diagrams and didn't realise it was connected through a controller (ie BCU/ECU)

Mundy
Hi, recently had a similar issue on my 01 D2
One side indicator was flashing and sounding intermittently different to other side. It had me stumped for a while as it seemed to vary as you wiggled the front indicator cable just before it entered the indicator lens unit ( orange lens)
Took front indicator lens off and it had some water in it. It had corroded the globe base and the pins at the base of the globe holder.

I got a section of cable and new globe holder from TRS in Adelaide.
Phil at TRS recommended splicing the new section of cable in with the Globe holder as there has been evidence of moisture wicking into the initial bit of the cable causing intermittent shorts/issues.

Done and problem all fixed!


It was drivers side that was the issue

Suggest you remove indicator lens and check pins of indicator globe plus see if moving cable laters flash pattern/sound/timing as it did on mine

Hope this helps

Cheers
Nobby

The fast flashing is not a problem of a relay, they are simple NO contact relays, it's the bulb failure warning managed by the IDM(integrated part of the fusebox) , so if you are 100% certain that all the bulbs are working then it's some strange fault which reduces the load of the circuit and the IDM "thinks" its a blown bulb, most probably the internal resistance makes bad contact, short or something, or a wiring issue as explained above... IMO they overcomplicated that system way too much for what it does...

Direction Indicator Lamps Operation
The BCU supplies a reference voltage from pin C0663-2 on a GR wire for the
LH flasher and from pin C0660-6 on a GW wire for the RH flasher. When the
flasher switch is moved to the LH or RH hand flasher position an earth path is
completed from the switch on a B wire, via header C0286 LHD/C0291 RHD to
earth header C0018 LHD/C0017 RHD. The completion of the earth, signals the
BCU that a request for LH or RH flasher operation has been made.
The BCU then sends a signal on an SK wire from pin C0661-1, via header
C0293 LHD/C0292 RHD, to the IDM in the passenger compartment fusebox.
The SK wire is the serial data bus between the BCU, IDM and the instrument
pack.
The signal is received by the IDM and interpreted as a request for LH or RH
flasher operation. The IDM grants an earth path for the coil of the LH or RH
direction indicator relay. The coil is energised by the feed from fuse 14 in the
engine compartment fusebox, closing the relay contacts.
With the contacts closed, the feed from fuse 14 also passes through the relay
and is connected, via a resistor, from the passenger compartment fusebox to
the applicable direction indicator. The IDM controls the flasher operation by
momentarily removing and restoring the earth for the relay coil, which opens
and closes the contacts causing the indicator bulbs to flash on and off.
The resistor is used by the IDM to monitor the current drawn through the
resistor by the direction indicator bulbs. If an indicator bulb fails, the IDM
detects the drop in current draw across the resistor and operates the flasher
relay at a faster speed. The faster flash is also transmitted to the instrument
pack to inform the driver of the bulb failure.
The IDM operates the direction indicator lamps in the instrument pack on the
serial data bus on the SK wire from the passenger compartment fusebox, via
header C0293 LHD/C0292 RHD, to the instrument pack.

it's quite common for that fusebox to have dry joints, bad contacts or corrosion/shorts due to water ingress so IMO there's where you should investigate

I bought two YWB10004 Relays from Rimmer Bros which fixed my intermittent flash on r/h side. (I swapped both out anyway, thats why I bought two).