4wd Relay Clicking At Idle

[wolverine]

the relay that is connected to the 4WD fuse clicks repeatedly approx every 60secs at idle.

the relay is located near the bonnet hinges on the drivers side ie the black relay.

anyone got ideas on why it is being triggered? can anyone supply circuit diagrams to help out?

ps. the 4WD light is not being lit but does work.

[genkin]

I also have a clicking sound come from somewhere behind the dash at idle.

weird

[beastien]

the relay that is connected to the 4WD fuse clicks repeatedly approx every 60secs at idle.

the relay is located near the bonnet hinges on the drivers side ie the black relay.

anyone got ideas on why it is being triggered? can anyone supply circuit diagrams to help out?

ps. the 4WD light is not being lit but does work.

Mine does exactly the same thing, have tried to diagnose it, but got nowhere.

Tried tracing things through the diagrams in the service manual, but had no luck.

[Terminal]

My R33 had a clicking/ticking problem at idle, I believe it was the knock sensor on the engine. It wasn't 4WD so it couldn't be that. Maybe have a look into that?

[wolverine]

if i pull the 4WD fuse the clicking stops (test light confirmed) so i presume the relay goes to an actuator or somesuch but it is weird how it does it at rest.

[beastien]

It's definately the 4WD relay, you can feel it clicking if you put your hand on it.

I think it's strange that it does this, It would have to be the relay for the Attessa pump.

[BlackR32]

Guys,

I had something similar a while ago, does it get worse if you have all your accessories running (lights etc), mine was doing it because it was not getting enough charge from the alternator.

just something to think about

cheers

[beastien]

My alternator puts out 13.8v solid, unless it's not supplying enough current.

Will check to see if it gets worse with more load.

[DaveB]

Hi guys just a thought, relays wear out too... maybe the attesa ones have a hard life?

Edited July 13, 2007 by DaveB

[wolverine]

i still have that infernal clicking.

how is the atessa triggered on stageas? is it a wheel sensor if so could it be faulty or incorrectly located?

[jippa]

i also had this problem on my s1 coming from behind the glove box. my car had waranty so it was repaired for free. im going back to the auto sparky so will ask what the problem was

[Stinky Rooster]

i still have that infernal clicking.

how is the atessa triggered on stageas? is it a wheel sensor if so could it be faulty or incorrectly located?

The stagea doesn't use wheel sensors, it uses g-force sensors, located under the centre console between the front seats. Maybe if one of the mercury switches was stuffed it could be constantly flicking the relays on/off? This seems uinlikely though, as Jermome would have found out - I have a feeling they would be very expensive to repair, not to mention difficult to source. My money would be on a stuffed relay.

[wolverine]

the relay is fine. i have changed it from another S2 that does not have this issue and it still clicks. something is sending a signal to it and it beats me what it is.

perhaps i should take the console out and check the orientation of the g-force sensor??!?! unless someone moved something during the stereo install?

[pixel8r]

The stagea doesn't use wheel sensors, it uses g-force sensors, located under the centre console between the front seats. Maybe if one of the mercury switches was stuffed it could be constantly flicking the relays on/off? This seems uinlikely though, as Jermome would have found out - I have a feeling they would be very expensive to repair, not to mention difficult to source. My money would be on a stuffed relay.

ATTESA also uses the ABS sensors...as well as g-force sensors.

[wolverine]

thanks steve and dale.

i will have a look at these things and see if i can find something.

[petrolfix]

what happend with your 4wd system mine is not working and the relay cliks like mad any one with info i whould appeciate

[wolverine]

i still have that infernal clicking relay. i still have no idea what triggers it.

i haven't looked at the G-force sensor for orientation yet.

[chook]

Have you all tried the attessa diagnostic ? http://www.skylinesaustralia.com/forums/4w...=4wd+diagnostic

[wolverine]

thanks chook

the powerfc makes it harder to find these codes without swapping ECU's back (i guess).

based on philtacular's issue 'the clicking relay' which showed a pressure switch fault then it is odds on we all have the same issue.

sooo what does the pressure switch do and where is it?

[NXTIME]

On my R32 GTR the relay in the rear of the boot clicks intermittantly at idle also. My 4WD gauge also goes to full torque split and beyond. As soon as the car moves, it goes back to normal and the clicking stops.