ESC TSA REDUCED BRAKING ETC FAULTS

[R14ONE]

Hi,

Whilst driving this evening I had the following faults all at once
ESC not available
Vehicle Stability Reduced TSA
Hydraulic Brake Assist Malfunction
Uphill Assist Not Available
Downhill Assist Not Available

The faults remained after stopping and restarting three times.

Has anyone had the same problem ? Possibly Hardware or Software

Thanks

 

[Kenny]

Hi R14ONE,
I just picked up my Grenadier new from the dealer last week and my car has been faulting every day with the same fault codes.
It deactivates my cruise control as well.
I thought that it was something to do with the steering wheel angle sensor as the steering wheel was off just a smidge.
I have taken it up to the dealer where they did a calibration on the steering angle sensor.
I asked them to just straighten up the steering wheel but, the calibration it was as the steering wheel is still of a tad driving home today.
Driving home today, it has faulted again. I have just done 500kms in the car.
It seems to be happening to me when I am doing 100km/hr on the freeway.
I have called the workshop back immediately and informed them. I am now waiting for a reply from Ineos to the dealer to then relay the request to me but I am getting over the trips to the dealer.
Did you get to the bottom of what is causing this issue on your car at all?

 

[PBD]

Hi,

Whilst driving this evening I had the following faults all at once
ESC not available
Vehicle Stability Reduced TSA
Hydraulic Brake Assist Malfunction
Uphill Assist Not Available
Downhill Assist Not Available

The faults remained after stopping and restarting three times.

Has anyone had the same problem ? Possibly Hardware or Software

Thanks

Hi,
Yes mine started over a month ago with same faults as you but also power steering and gearbox faults. I have nothing showing at all in the recorded faults list, just blank.
It's in for service next week and they will try and trace the cause. Dashboard looks like a Christmas tree

 

[trobex]

Hi,

Whilst driving this evening I had the following faults all at once
ESC not available
Vehicle Stability Reduced TSA
Hydraulic Brake Assist Malfunction
Uphill Assist Not Available
Downhill Assist Not Available

The faults remained after stopping and restarting three times.

Has anyone had the same problem ? Possibly Hardware or Software

Thanks

Most of us had these warnings. I got them a few times more often when new, now maybe once a month... the issue im told is battery if it's not PERFECTLY charged it can show these warnings. Also, if you turn ignition to full instantly it can do this also, the system needs about .75 seconds after 2nd engage to limit this occurrence. I spend just that 1 second off final ignition stage and warnings never come on.

 

[eddyoz]

Strange indeed,I had the same sequence of faults,not sure if it was linked to steering wheel off centre and wandering to centre of road but all came good after a wheel alignment [specialist ie not by the dealer]

 

[Asnes]

Sounds like a faulty wheel speed sensor

 

[PBD]

UPDATE
Got mine back from first annual service last night and this was caused by damage to the rear left wheel sensor. Sensor repaired and now all ok.

 

[Kenny]

I had the wheel alignment done on the vehicle and the TSA fault, uphill/downhill assist faults have not returned for the past two weeks or so.

But........the cruise control still disables as if I have touched the brakes, but only lefthand corners.
I thought that it was the cruise control that was causing the faults but I had lots of time to test out theories.
My car does not like left hand corners.

The speed at which the ESC (Lamp B1) fault kicks in seems to be 100-115km/hr.

It blinks but the road is not slippery and the car is not experiencing loss of traction or control.

It is not assisting me in any way and makes it dangerous as I can’t accelerate to maintain speed.
I’m glad I didn’t have a road-train up my ass.

It does not fault driving below 90km/hr I believe as I was either doing above 100km/hr or 80km/hr and below through the many country towns today.

It was faulting on just about every lefthand bend (above 100km/hr), even the very slight bends (there were a lot of lefthand corners today).
It got to the point where I thought that it was the cruise control causing the fault and I would disable it coming up to the lefthand bends.

I found that the car would still show the blinking ESC symbol even with the cruise control off and the car would not accelerate once the lefthand corner had initiated the fault.
If I coasted through the corner, it would not flash the ESC symbol but trying to maintain speed by accelerating, the car would not accelerate and I could feel the motor retard.
It wasn’t until the steering wheel was back centred again that the car would happily accelerate again and stop the blinking lamp.

There was one corner up a hill that I couldn’t maintain speed as the car would not accelerate as it was showing the ESC activating and slowed down to 90km/hr in a 110km zone before the road straightened out again where I could get back up to speed.
It does not do it on righthand corners, only left.

I have it booked in for tomorrow at the dealers to investigate water leaking into the passenger footwell from the aircon so will ask them if they can check the wheel sensors but I'd expect it to fault through left or righthand corners.
I just want to drive the car and not have these issues.
It went well apart from the constant bug outs today.

As far as turning the car on, I turn the key to the first position and wait for the lamps to all turn off on the cluster before starting the car.

 

[Tom D]

I had the wheel alignment done on the vehicle and the TSA fault, uphill/downhill assist faults have not returned for the past two weeks or so.

But........the cruise control still disables as if I have touched the brakes, but only lefthand corners.
I thought that it was the cruise control that was causing the faults but I had lots of time to test out theories.
My car does not like left hand corners.

The speed at which the ESC (Lamp B1) fault kicks in seems to be 100-115km/hr.
View attachment 7893144
It blinks but the road is not slippery and the car is not experiencing loss of traction or control.
View attachment 7893145
It is not assisting me in any way and makes it dangerous as I can’t accelerate to maintain speed.
I’m glad I didn’t have a road-train up my ass.

It does not fault driving below 90km/hr I believe as I was either doing above 100km/hr or 80km/hr and below through the many country towns today.

It was faulting on just about every lefthand bend (above 100km/hr), even the very slight bends (there were a lot of lefthand corners today).
It got to the point where I thought that it was the cruise control causing the fault and I would disable it coming up to the lefthand bends.

I found that the car would still show the blinking ESC symbol even with the cruise control off and the car would not accelerate once the lefthand corner had initiated the fault.
If I coasted through the corner, it would not flash the ESC symbol but trying to maintain speed by accelerating, the car would not accelerate and I could feel the motor retard.
It wasn’t until the steering wheel was back centred again that the car would happily accelerate again and stop the blinking lamp.

There was one corner up a hill that I couldn’t maintain speed as the car would not accelerate as it was showing the ESC activating and slowed down to 90km/hr in a 110km zone before the road straightened out again where I could get back up to speed.
It does not do it on righthand corners, only left.

I have it booked in for tomorrow at the dealers to investigate water leaking into the passenger footwell from the aircon so will ask them if they can check the wheel sensors but I'd expect it to fault through left or righthand corners.
I just want to drive the car and not have these issues.
It went well apart from the constant bug outs today.

As far as turning the car on, I turn the key to the first position and wait for the lamps to all turn off on the cluster before starting the car.

Sounds like a wheel speed sensor fault. If you plugged in a diagnostic scanner while driving and had someone check the readouts it might show up?
Have you checked for stones in the cages around the speed sensor rings?
Might be worth a shot..

 

[Kenny]

Sounds like a wheel speed sensor fault. If you plugged in a diagnostic scanner while driving and had someone check the readouts it might show up?
Have you checked for stones in the cages around the speed sensor rings?
Might be worth a shot..

Like an OBD tool?
Is there one that works with the Grenadiers?
Or the wheel sensor readings won’t be locked like some of the other motor and manufacturer functions and i can use a generic OBD scan tool?
If they find nothing today, i’ll pull the wheels off and check.