AH Problem
Thread Starter
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
AH Problem
I'm happy with how the the AH system works and I've already had the EBCM replaced so this one got me stumped.
I'm getting AH trips which are resetting once I restart the car. The caption comes up, TCS stays in but AH trips. The trip always occurs when I'm stationary. Quite often I get a shimmy from the AH under gentle braking followed by the associated AH caption on the DIC just before it trips out.
I have a C1287H steering sensor rate malfunction
I also have a B2587H, B2592H and B2593H which are Column Lock/Unlock Drive A and Drive B faults. I've never heard of these and I have an A4 which doesn't have a column lock. My battery is good. My car is garaged so the grounds are clean and undisturbed.
My thought is the steering wheel positon sensor is the culprit but the trip always occurs when Im stationary and the steering wheel is straight and not moving.
Can anyone cast any light on why?
How does the sensor get its information. is it purely electrical?
I'm thinking the best start would be to pull the sensor connectors at the hubs and add some lubrication.
Any ideas?
I'm getting AH trips which are resetting once I restart the car. The caption comes up, TCS stays in but AH trips. The trip always occurs when I'm stationary. Quite often I get a shimmy from the AH under gentle braking followed by the associated AH caption on the DIC just before it trips out.
I have a C1287H steering sensor rate malfunction
I also have a B2587H, B2592H and B2593H which are Column Lock/Unlock Drive A and Drive B faults. I've never heard of these and I have an A4 which doesn't have a column lock. My battery is good. My car is garaged so the grounds are clean and undisturbed.
My thought is the steering wheel positon sensor is the culprit but the trip always occurs when Im stationary and the steering wheel is straight and not moving.
Can anyone cast any light on why?
How does the sensor get its information. is it purely electrical?
I'm thinking the best start would be to pull the sensor connectors at the hubs and add some lubrication.
Any ideas?
Last edited by DeeGee; Aug 22, 2007 at 02:51 PM.
Thread Starter
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
ttt
I'm coming up towards needing new brake pads. Any connection?
I'm coming up towards needing new brake pads. Any connection?
Last edited by DeeGee; Aug 22, 2007 at 02:55 PM.
