Question about Toyota Cars & Trucks
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Posted on Jan 02, 2017
Unfortunately there are several possibilities that are common to causing the light to come on. I would suggest taking the car in to a dealer and having them read out the fault memory. Such possibilities are a failed speed sensor, a binding DSC/ACS actuator cable, or faulty DCS/ASC control unit. If you know how, you can disconnect the speed sensors, and check for voltage output across the the terminals inside the connector going to the speed sensor while rotating the wheel. A dealer should charge you about an 1hour fee to check out your system. Due to the cost of parts involved, I would recommend having it checked before just guessing.
Posted on Mar 15, 2009
SOURCE: 2006 RAV4 warning lights
I fixed my problem with my RAV4 by going to another website that really did have free advice and didn't try to sell me any information.Thanks anyway
Posted on Mar 31, 2009
SOURCE: 1997 Toyota Caldina GT-T 3S-GTE
As you say the tacho/speedo come "back up to normal" after the incident, I assume that they either stop working or become erratic while the dash lights are misbehaving.
If so, this sounds like a dash wiring electrical problem.
The O/D OFF light is lit by the switch on the shifter (switch also inputs to the ECU). The ENGINE light is driven also from the ECU but the SLIP light is driven from the ABS/VSC computer, although these two computers do communicate.
Best plan of attack would be interrogate the ECU for error codes or ask a Toyota dealer to do so. At least you'll have some clue to any problems that the ECU's may have picked up.
Contact me about checking for ECU error codes if you want to attempt it yourself. Although the Caldina has an OBDC2 connector, as I understand it it's not 100% compliant, so you'll need a Toyota compatible reader. Fortunately teh codes are also output via the CHECK ENGINE light.
If there's no problems there, I'd be pulling the instrument cluster and checking for wiring problems. I'm not sure where in the world you are but most ex- JDM vehicles could have modified with timers, speed-cut or fuel-cut devices that either have been poorly installed or are playing up and causing electrical problems.
Posted on Oct 31, 2009
I had the same problem. the jerking breaking and pulling to one side, but if u are going over 70 miles and that happens to you, you better start praying cause it will **** so hard that its hard to control. the yaw rate sensor (prox $400 on line) needs to be replace and adjustment (i beleave only the dealer can adjust). What I did to solve the problem is to eliminate the sensor ($0 cost). now my SUV drives and handle just like a regular truck without traction control. Toyota is not helping on this matter and dealers just dont care. I will not put my family thru the same scarry ride. My solution eliminate the sensor, the light is on @ all time but in return a smooth ride. Im not telling you to do what I did, but Im telling you it is the Yaw Rate Sensor. Good luck.
Posted on Dec 21, 2009
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I've made up the following instructions, on how to clear VSC & TRAC Warning lights:
Zero Point Calibration of Yaw Rate and Deceleration Sensors Using Paper Clips (or jumper wires).
First, locate the 16-pin ODB II connector under the steering wheel (beneath the dash). The pins are numbered sequentially backwards from right to left (from the wide side of the connector looking at it from underneath).
Take two normal-sized paper clips (or suitable jumper wires). If using paper clips, straighten one edge of one of the paper clips. For the other, bend it open to a 90-degree angle (like an elbow).
Insert one paper clip/wire into pin # 14 (Ts), and the other paper clip/wire into pin # 4 (CG) of the OBD II connector - DO NOT allow the paper clips/wires to make contact at this point. 1. Ensure the shift lever is in "P" range. Verify that the VSC indicator light is illuminated, indicating the Recorded Zero point is erased.
Refer to diagram below:
2. Turn the ignition switch to "ON" (not start).
3. Momentarily touch the two paper clips/wires together (short) and separate again (open) - Repeat this process 5 times (within 8 seconds of turning ignition on).
4. Turn the ignition switch "OFF".
5. Remove both paper clips/jumper wires from the OBD II connector.
6. Turn the ignition switch "ON" (not start) - wait until VSC warning light turns off (approx. 20 seconds), then wait 2 seconds.
7. Turn the ignition switch "OFF".
9. Re-insert paper clips/jumper wires to terminals #4 & #14 of the OBD II connector (as per above diagram).
10. Turn the ignition switch "ON" (not start) - VSC warning light should remain illuminated for 4 seconds, then start flashing at 0.13 second intervals.
12. After VSC warning light flashes for 2 seconds, turn the ignition switch "OFF".
13. Remove paper clips/jumper wires from the OBD II connector.
Drive your vehicle to confirm VSC & TRAC warning lights have been reset and no longer illuminate.
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1. Ensure the shift lever is in "P" range.
Verify that the VSC indicator light is illuminated, indicating the Recorded Zero point is erased.
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