Parking brake/ABS/VSC lights stay on?

Go get the codes read. Autozone will not cut it as there readers are not fully hybrid capable. It may be the ABS unit has failed and if so the brakes will feel really bad. There's a time sensitive TSB out for it and they may grandfather you in for the repair. Get to the dealer asap tic toc.

 

Go get the codes read. Autozone will not cut it as there readers are not fully hybrid capable. It may be the ABS unit has failed and if so the brakes will feel really bad. There's a time sensitive TSB out for it and they may grandfather you in for the repair. Get to the dealer asap tic toc.

 

1. Since you own three Toyotas, invest in Mini VCI which will read DTC on all Toyota vehicles.
2. Check the air pressure on all four tires.
3. The ABS blink codes imply you have a problem with three wheel speed sensors (RF, LF, RR) which seems improbable.
4. Check the condition of the 12V battery.

 

Hey pat where you been lol? Miss your posts dude.

 

I have a driftwood 07 too.

 

Maybe.

 

(I pasted from the section on the rear sensor codes; the front section is similar.)

The four wheel speed sensors start out at very distant corners of the car, but the wiring circuits get closer and closer together until they plug into the same skid ECU at the same connectors, so if there are codes for three of them, there's probably something going on nearer that end.

There are about 12 pages in the RM suggesting a good troubleshooting approach ... start non-invasively, using Techstream to watch the reported values and any error indications in real time while (somebody else is) driving the car ... move on to measuring voltages/waveforms right where the signals enter the ECU (still without tearing anything apart) ... proceed from there as the evidence directs.

-Chap

 

I suppose that a wobbling bearing would cause bad signals to be produced by the speed sensor.

Interesting that the front wheel sensors also had fault codes logged. Glad to hear your car is restored to correct functioning.

 

I'm looking at the detection conditions in #11 and wondering if, where the comparisons of wheel speed signals are concerned, there might be a situation where the ECU can see that the readings are different, but not be sure which one's wrong. It doesn't jump out at me, and even on turns, I bet the ECU knows the car's geometry and how different the wheel speeds should be. Still, I wonder if that could be part of the story.

-Chap