Diagnosis System

DIAGNOSIS
NOTE: When releasing the parking brake lever, set the chocks to hold the vehicle for safety.
1. Release the parking brake lever.
2. If the skid control ECU detects a malfunction, the ABS and BRAKE warning lights will come on to warn the driver. The table shown in Fig 2, indicates which lights come on when there is a malfunction in a particular function.
  
  Fig 1: Identifying Illumination Of ABS And Brake Warning Lights
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: ABS And Brake Warning Lights Illumination Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. The DTCs are simultaneously stored in memory. The DTCs can be read by connecting the SST (09843-18043) between terminals TC and CG of the DLC3 and observing the blinking of the ABS warning light, or by connecting a hand-held tester (SEE DTC CHECK/CLEAR ).