Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT DLC3
1. Turn the ignition switch ON.
2. Measure voltage between terminals Ts and CG of DLC3.
  
  Fig 1: Measuring Voltage Between Terminals Ts & CG
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: 10 - 14 V
1. NG: Go to step 3
2. OK: Go to next step.
CHECK HARNESS AND CONNECTOR (DLC3 - SKID CONTROL ECU, DLC3 - BODY GROUND) (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
2. OK: CHECK AND REPLACE BRAKE ACTUATOR ASSY
CHECK ABS WARNING LIGHT
SST 09843-18040
1. Using SST, connect the terminals Ts and CG of the DLC3.
  
  Fig 2: Connecting Terminals Ts & CG
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the ABS warning light.
  OK: ABS warning light blinks
1. OK: END
2. NG: CHECK AND REPLACE BRAKE ACTUATOR ASSY