Diagnosis System
WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
- DIAGNOSIS
- If the skid control ECU detects a malfunction, the ABS, BRAKE and VSC TRAC warning lights and the VSC OFF and SLIP indicator lights will come on to warn the driver. The table below indicates which lights will come on when there is a malfunction in a particular function.
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- The DTCs are simultaneously stored in the memory. The DTCs can be read by connecting the SST between terminals TC and CG of the DLC3 and observing the blinking of the ABS and VSC TRAC warning lights, or by connecting a hand-held tester.
- This system has a signal check function (see TEST MODE PROCEDURE
).
The DTCs can be read by connecting a hand-held tester and observing the blinking of the ABS and VSC TRAC warning lights.
- WARNING LIGHT AND INDICATOR LIGHT BULB CHECK
- Release the parking brake lever.NOTE: When releasing the parking brake, set the chocks to hold the vehicle for safety.
HINT:
When the parking brake is applied or the level of brake fluid is low, the BRAKE warning light comes on.
- When the ignition switch is turned to the ON position, check that the ABS, BRAKE, and VSC TRAC warning lights and the VSC OFF, SLIP, and AUTO LSD indicator lights come on for approximately 3 seconds.
HINT:
If the warning light and indicator light check result is not normal, proceed to troubleshooting for the ABS, BRAKE, and VSC TRAC warning light circuits, and the VSC OFF, SLIP, and AUTO LSD indicator light circuits.
If the indicator remains on, proceed to troubleshooting for the light circuit below.
TROUBLESHOOTING REFERENCETrouble Area See Example ABS warning light circuit Figure or ABS Warning Light Circuit (Does not light up) BRAKE warning light circuit Figure or Figure VSC TRAC warning light circuit Figure or VSC TRAC Warning Light Circuit (Does not light up) VSC OFF indicator light circuit Figure or VSC OFF Indicator Light Circuit (Does not light up) SLIP indicator light circuit Figure or SLIP Indicator Light Circuit (Does not light up) AUTO LSD indicator light circuit AUTO LSD Indicator Light Circuit (Remains ON) or Figure - Release the parking brake lever.