ABS and Parking Brake On (intermittent)
 

Hello Everyone,

The abs and parking brake light have started to come on and off in the past month or so. I tried to read the DTC code with an OBD2 reader but the reader says "No DTC code found". I think the problem is related to temperature. We had 3-4 weeks of 30degrees outside temperature and the lights were always on. Now, the average night temperature is around 5-10 degrees and daytime 20 degrees. It is 10 degrees this morning and both lights are off. I did a complete brake job 3 months ago (rotors, pads and new rear calipers). Also, sometimes both lights will be off when I start the car but after driving 10-15 km they will come on.

Should I try shorting the pin under the hood if the abs and parking brake come on again to get the code ? Should I just put the car on stands and verify each ABS sensor (voltage and/or resistance) ?

Please advice.

René

1st check the brake fluid level.