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Cascade Fault Code: 01325 ECU Tire Pressure Monitoring - J502 No Signal / No Communication •03841 Left Rear Speed Sensor, Incorrect Signal Electrical Problem In Circuit - Intermittment •02214Tire Pressure Warning Lower Limit Reached Intermittent •
Affected Models: Audi • Vw • Seat • Skoda •
Vw Passat 2013 2.0l tdi-cr (CFFB)
00290 ABS Wheel Speed Sensor, Rear Left - G46 Open Circuit/Short with Power - Intermittent
01325 ECU Tire Pressure Monitoring - J502 No Signal / No Communication
03841 Left Rear Speed Sensor, Incorrect Signal Electrical Problem In Circuit - Intermittment
02214Tire Pressure Warning Lower Limit Reached Intermittent - This is a complete "Red herring" and is there because the tire pressure system require wheel speed in order to function.
The Dashboard was lit up with quite a few warning lights ABS, Tyre pressure - (flashing), Steering warning light and the parking brake warning light as well.
Ultimatly our vechile ended up being the N/S/R (Left Rear) Wheel Speed Sensor however although this is a common part to go wrong it is always worth doing a few simple checks to confirm as quite often it can be the bearing that is faulty (These Cars no longer have a Reluctor ring for the ABS instead the have a magnetic section on the rear of the wheel bearing / Drive Hub).
The first test was a simple circuit test this required a multimeter you could ue it on ohms or just somple circuit testing mode our ssensor was open circuit so this was quite conclusive a test but you can always check your reading against the other side for conformation.
In fact we can do a few otyher tests to confirm as well quite often the sensors a easyily removed without damaging them you could then swap them side to side if they are not handed this should then transfer the fault to the other side this can then be checked in the Live data with the car safetly raised up and spinning the wheel by hand these modern sensors are very acurate and work down to as little as 1mph unlike the old style sensors with a reluctor ring.
Anoth test is you can use some jumper leads to wire accross the car so the Right Hand sensor is wired into the Left Hand Plug this will confirm if the wiring to the ECU is OK.
Published • 2021-06-04 20:21:15 • 0 Comments
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