Disco 3 (LR3) Speed sensor fault codes C1A93-13 & C1A93-78

Recently had the dash light up like a christmas tree and had 4 random warning lights come on.
Vehicle lowered the suspension but ran fine.

I diagnostic check revealed two error codes

(Think the mention of the left wheel is an error and should read right wheel)
Live data confirmed


Bosch sensor ordered from ECP, rear right wheel removed, one 9mm bolt removed from hub and sensor removed and unplugged at chassis rail. New sensor fitted and codes cleared. All runs as it should now

biggeeeee said:

Recently had the dash light up like a christmas tree and had 4 random warning lights come on.
Vehicle lowered the suspension but ran fine.

I diagnostic check revealed two error codes
View attachment 113338 View attachment 113339
(Think the mention of the left wheel is an error and should read right wheel)
Live data confirmed
View attachment 113337

Bosch sensor ordered from ECP, rear right wheel removed, one 9mm bolt removed from hub and sensor removed and unplugged at chassis rail. New sensor fitted and codes cleared. All runs as it should now

Click to expand...

good result

have u got pics of the sensors please

plus did u happen to check the wiring loom on the passenger side , between the back wheel and compressor u will see a large loom near the handbrake cable

the loom can rub against the chassis and cause the outer case to be cut through

not sure what this loom controls, unless further along it goes up inside the body for the rear lights, sensors etc

Pictures of the worn sensor

I did remove both of the nearside wheel arches
In the front there are 3 multi-plugs to the rear of the arch that almost sit on the chassis leg.
I separated each of these and gave them a clean with contact cleaner and reassembled.
The rear one sits on the chassis leg and is probably better accessed from the spare wheel well, I didn't take that apart as I had solved the problem by that time

Is that 'divot' meant to be there?

Spong said:

Is that 'divot' meant to be there?

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No

Spong said:

Is that 'divot' meant to be there?

Click to expand...

i was thinking the same thing

biggeeeee said:

I did remove both of the nearside wheel arches
In the front there are 3 multi-plugs to the rear of the arch that almost sit on the chassis leg.
I separated each of these and gave them a clean with contact cleaner and reassembled.
The rear one sits on the chassis leg and is probably better accessed from the spare wheel well, I didn't take that apart as I had solved the problem by that time

Click to expand...

found getting the inner wheel arches out good fun , especially unclipping all the little plastic clips

got one of those trim removers, really handy

nice when a plan comes together

gstuart said:

i was thinking the same thing

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Did have a look to see what caused it but the damage looks old and couldn't see anything obvious.

biggeeeee said:

Did have a look to see what caused it but the damage looks old and couldn't see anything obvious.

Click to expand...

when u first look at them u would think they are shaped like that in order to sit by the hub

been trying to think how theyve worn down that much,

like u say nothing evident