03 NP ABS - does it work in reverse

[RevRev]

Should my ABS on my 03 NP work at low speed in reverse?

This might be a general question to learn about the function of ABS but I have recently moved to a house with a steep driveway. I notice that sometimes turning to back onto the driveway a wheel on gravel will lock and slide as i move down.
Yesterday the car was heavily loaded with firewood and I reversed a distance down a wet, slick concrete road and found I started losing traction, locking wheels and sliding.

I didn't test it out by coming back down forwards but my tests of ABS from a higher speed indicate the ABS is working at speed driving forwards, but Ive never thought to test it in reverse.

Wisdom of the group welcomed!

[nnikbg]

If you drive less than 10 km/h, ABS is off

Sent from my Redmi Note 4 using Tapatalk

[Having Fun]

When we 1st bought our petrol NP, we took it up to the Flinders & amongst other things, took it out to Jarvis Hill lookout; all good on the way up going forwards. Not so good on the way down, also going forwards!


It was in low range, 1st gear on sports shift & because it's a petrol, next to no engine brakes. It kept running away & every time the brakes were applied, it locked up. Not great on a steep, loose gravel descent! Pretty scary really!


The ABS works normally on flat sealed roads though lol.

[El_Freddo]

It kept running away & every time the brakes were applied, it locked up. Not great on a steep, loose gravel descent! Pretty scary really!

If ABS was activated it would be a whole lot more scary - almost like not having brakes!

Cheers

Bennie

[old Jack]

ABS will only work if there is sufficient vehicle speed, the speed at which it works from is dependent on the vehicle's ABS ECU program and could be between 5kph and 30kph.

Some vehicle have hill descent control which is designed to basically work as a low speed ABS, the HDFC fitted Landrovers is particularly effective.

If you are descending a steep slippery slope then a partial application of the hand brake can lessen the amount of foot braking required so you are less likely to lockup the front wheels. Reduced tyre pressures will also assist. If the front wheels do lock up then you need to reduce foot brake pressure, this can be difficult to do but it is required because a wheel that is slipping has lost its steering control.

On any descent speed/momentum is your enemy so when you have the opportunity to reduce speed it is a good idea to do so.

OJ.

[Having Fun]

ABS will only work if there is sufficient vehicle speed, the speed at which it works from is dependent on the vehicle's ABS ECU program and could be between 5kph and 30kph.

Some vehicle have hill descent control which is designed to basically work as a low speed ABS, the HDFC fitted Landrovers is particularly effective.

If you are descending a steep slippery slope then a partial application of the hand brake can lessen the amount of foot braking required so you are less likely to lockup the front wheels. Reduced tyre pressures will also assist. If the front wheels do lock up then you need to reduce foot brake pressure, this can be difficult to do but it is required because a wheel that is slipping has lost its steering control.

On any descent speed/momentum is your enemy so when you have the opportunity to reduce speed it is a good idea to do so.

OJ.

It was Jarvis Hill Lookout. Hardly extreme four wheel driving.


I'd happily take a 2WD sedan up there on a dry day!