R50/53 r53 Trifecta caused only by speed sensors?
#1
r53 Trifecta caused only by speed sensors?
Hello,
I have a 2003 R53 and I am currently getting the "trifecta" illuminating on the dash (ABS light, DSC, and tire pressure).
I have looked at all 4 wheel speed sensors.
I looked at the sensors with a scope: all 4 wheel speed sensors are getting about 13V DC, Has a 0.2 V square wave on the output when rotating each tire.
Now some of the sensors on the car may be aftermarket (not OEM). My question is, could anything else be causing this "trifecta" illumination?
I have a 2003 R53 and I am currently getting the "trifecta" illuminating on the dash (ABS light, DSC, and tire pressure).
I have looked at all 4 wheel speed sensors.
I looked at the sensors with a scope: all 4 wheel speed sensors are getting about 13V DC, Has a 0.2 V square wave on the output when rotating each tire.
Now some of the sensors on the car may be aftermarket (not OEM). My question is, could anything else be causing this "trifecta" illumination?
#2
#3
Regards,
Jerry
#4
Wheel speed sensors or wheel bearings are the usual cause of the trifecta if you have already verified that there are no wiring issues, or exposed wiring.
My car had an occasional DSC/TPMS light with no codes stored as to which location, and it would go out whenever it wanted, turned out the problem was the tone ring on the LF wheel speed sensor.
My car had an occasional DSC/TPMS light with no codes stored as to which location, and it would go out whenever it wanted, turned out the problem was the tone ring on the LF wheel speed sensor.
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