Mazda 6 abs light on, temperature gauge goes up, hard shifting ATX

SOURCE: ABS, Traction control and handbrake

I have a Mazda Capella (626) 1998 and had similar problem other than it was running on 4 cylinders and the hand brake light was not on but speedometer was not functioning and the ABS light was on. The rear ABS senssor was the problem.
SDM

SOURCE: transmission doesnt shift abs & brake light on speedometer doesnt work

I had the same problem with ABS light and speedometer, I was told that it is the transmission control module. It has not yet stopped shifting but I have had times where it just wont stay running. It will start and then stall. Hope this helps.

SOURCE: 2003 Sonoma SLS 6 cylinder 4.3L ABS issue

I WOULD NOT KEEP DRIVING IT.WHEN ABS LIGHTS AND BRAKE LIGHTS COME ON.YOU HAVE BRAKE FAILURE. TOW IT TO DEALERSHIP HAVE IT SERVICE.AND CHECK THE ABS BRAKES SYSTEM .BECAUSE ABS BRAKE SYSTEM IS NOT A HOME FIX.BECAUSE THE ABS HYDRAULIC MODULATOR UNIT HAS LOWER FROM HOME POSITION .IN ORDER TO MOVE THE MASTER CYLINDER FROM UNIT.YOU NEED A TECH 2 SCANNER TO DO THE JOB.TO GET ABS BRAKES TO BLEED RIGHT BEST TO GET THEM PRESSURE BLEED INSTEAD OF MANUAL BLEEDING GET LESS AIR IN SYSTEM.THAT WHY SEE DEALER SHIP HAS THE THINGS TO DO THE JOB.

SOURCE: mazda 626 (2000) ABS light comes on sometimes

Try the folllowing: 1. Check the clearance between the wheelspeed sensor and the sensor rotor, must be between 0.3 - 1.1mm. 2. Disconnect wheel speed sensor connector and check the resistance at the ABS wheel speed sensor, must be beween 1.4 - 1.8Kω.

SOURCE: 1998 plymouth voyager gauges on dashboard not

well start by checking all fuses but it sounds like a bad ground wire somewhere on the car