3" Lift in GU9 = Traction Control and ABS Issues not experienced in GU8 wit Same Lift

[Brad_GU9]

Ok, so I can rule out the height of the G Sensor located under the front seat as the cause of the problem. Tonight I was able to rig up a temporary bracket down through a large gromet in the floor just below the factory location of the sensor. I tested the following heights from factory without any change to the vehicle behaviour.

-20mm
-50mm
-75mm
-125mm

I think now that this sensor is the one that measures the rate at which the vehicle is actually slowing compared to live braking force calculations and the VDC adds more if necessary.

So, the elusive Gravity sensor which according to the schematic diagram for my VIN is nowhere to be found, it's supposed to be under the rear seats which it is not. Sometimes they are located under the centre console, but nope it's not their either.

My other thought was that the YAW sensor could be a little over active given the increased ride height.

Can anyone help with the location of either the YAW or Gravity sensors please. Next step is to locate both of these and try lowering them by the lifted height.

Thanks
Brad

[shina]

I a have simular problem with my 2013 patrol, after a 2" lift i get both lights coming on up on the dash only when I'm driving down the hwy doing 100. Been told its the yaw senor behind the steering wheel as since the lift the wheel is slightly out of centre. It only happens after about 10-15 min of driving usually in a straightish line. But when you stop and turn the car off and restart it, it resets itself until the next time.

[bazzaboy]

Put mine in for it's 30thou service today. Had the head mechanic drive it to witness the VDC issue. He said that they were aware of it happening on Patrols with 3inch or more lifts but not to any with only 2inch lifts. It played up consistently on nearly every round-about, killing the power and flashing the warning light. He said that they would re-set the VDC settings and re-test it. He also said that if that did not fix it, a known problem part would need to be replaced. I'll re-post the finding after I pick it up later today.

[bazzaboy]

I a have simular problem with my 2013 patrol, after a 2" lift i get both lights coming on up on the dash only when I'm driving down the hwy doing 100. Been told its the yaw senor behind the steering wheel as since the lift the wheel is slightly out of centre. It only happens after about 10-15 min of driving usually in a straightish line. But when you stop and turn the car off and restart it, it resets itself until the next time.

Unlike yours, mine only does it on corners. On thing though .... my 2014 and probably your 2013 does not have an adjustable drag link. This adjustment is needed to correct the steering wheel alignment. I have recently purchased an adjustable one from Superior Engineering to solve this issue.
Bazza.

[Ronin]

yeah thats what I heard that you need to change front steering arm to be able to get alignment straight.

[bazzaboy]

Put mine in for it's 30thou service today. Had the head mechanic drive it to witness the VDC issue. He said that they were aware of it happening on Patrols with 3inch or more lifts but not to any with only 2inch lifts. It played up consistently on nearly every round-about, killing the power and flashing the warning light. He said that they would re-set the VDC settings and re-test it. He also said that if that did not fix it, a known problem part would need to be replaced. I'll re-post the finding after I pick it up later today.

Further to above ...........

Picked up the Patrol yesterday afternoon, after all the "good intentions" made by the mechanic, nothing was done about the VDC. They now say that they are waiting on instruction from Nissan. Unbelievable! After 10 years with Toyotas I never had one issue regarding warranty with them. It seems with Nissan if you wash it you void the warranty. I don't like being f#@ked about. Never again.

[mudski]

I'm not familiar with the ABS etc etc but when you did the lift did you install the extension piece for the brake bias bracket on the rear diff?

[bazzaboy]

I'm not familiar with the ABS etc etc but when you did the lift did you install the extension piece for the brake bias bracket on the rear diff?

Not related to my issue, but I don't think an extension bracket for the brake bias is required for only a 2" lift. ( I could be wrong )

Bazza

[shina]

I'm not familiar with the ABS etc etc but when you did the lift did you install the extension piece for the brake bias bracket on the rear diff?

I could be wrong but i don't think the newer models have the brake bias on the rear diff....i couldn't see it on mine, unless its tucked up out off the way.

[mudski]

Not related to my issue, but I don't think an extension bracket for the brake bias is required for only a 2" lift. ( I could be wrong )

Bazza

The bracket needs to be moved upward on the rear diff for any lift, so thats its in the same position as it would with no lift. Otherwise the bias valve won't be working as it should.

I could be wrong but i don't think the newer models have the brake bias on the rear diff....i couldn't see it on mine, unless its tucked up out off the way.

Pretty sure they would have. But I haven't looked under one tbh.