Diagnostic code L
Discussion
Hi everyone - just had the Diagnostic Code L come up on my 03 Tuscan.
I know this means 'Erratic road speed sensor input' but does anyone know exactly what this means? I'm presuming its not life threatning and there may possibly be an easy fix for this - sensor dirty etc.
Many Thanks!
Eric
I know this means 'Erratic road speed sensor input' but does anyone know exactly what this means? I'm presuming its not life threatning and there may possibly be an easy fix for this - sensor dirty etc.
Many Thanks!
Eric
I got this a couple of times when under acceleration. I have cleaned the sensor head (bit of metal polish on end of piece of card slid between the crown wheel and the sensor) and never had it again since. Try this first before thinking about replacing the sensor (if it happens alot).
Not the kind of thing you will find in the manual.
As you look at the car from behind, the sensor is located on the left hand side of the car near the differential of the rear axle. You will need to jack up the car (one side is sufficient) in order to safely crawl underneath it. The sensor basically looks like a metal peg with a wire coming out of it. It is positioned near the teeth of the crown wheel (if that is the wrong terminology, please forgive) so that it picks up "pulses" from the teeth of the wheel as it rotates.
It is a bit fiddly to reach and will require a reasonably keen set of eyes and probably a torch. It is important to not disturb the gap of the sensor to the wheel otherwise it may not read at all! I used a piece of card with a pea sized blob of Autoglym metal polish on it, slide it into the gap and used it to clean the head of the sensor. Then I just used a folded paper towel to slide into the gap to clean the polish off. First time I have done this, but I imagine intime dirt and road grime will get onto the sensor's surface that will not help it.
Do a search on here, I asked where the sensor was positioned a few weeks back - that's how I know and managed to do this little job. So far so good.
Speed sensors have gone through several permutations during the Tuscan's life and cost about £75-90 at a dealer. You may need a new one. then again you might not. Try this first.
As you look at the car from behind, the sensor is located on the left hand side of the car near the differential of the rear axle. You will need to jack up the car (one side is sufficient) in order to safely crawl underneath it. The sensor basically looks like a metal peg with a wire coming out of it. It is positioned near the teeth of the crown wheel (if that is the wrong terminology, please forgive) so that it picks up "pulses" from the teeth of the wheel as it rotates.
It is a bit fiddly to reach and will require a reasonably keen set of eyes and probably a torch. It is important to not disturb the gap of the sensor to the wheel otherwise it may not read at all! I used a piece of card with a pea sized blob of Autoglym metal polish on it, slide it into the gap and used it to clean the head of the sensor. Then I just used a folded paper towel to slide into the gap to clean the polish off. First time I have done this, but I imagine intime dirt and road grime will get onto the sensor's surface that will not help it.
Do a search on here, I asked where the sensor was positioned a few weeks back - that's how I know and managed to do this little job. So far so good.
Speed sensors have gone through several permutations during the Tuscan's life and cost about £75-90 at a dealer. You may need a new one. then again you might not. Try this first.
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