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 TERMINAL VOLTAGE (Ts TERMINAL)
1. Turn the ignition switch to 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:
  
  Voltage: 10 - 14 V
- OK: GO TO STEP 3
- NG: GO TO NEXT STEP.
CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)
1. Check for open and short circuit in harness and connector between terminal CG of DLC3 and body ground (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
- NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
- OK: GO TO NEXT STEP.
CHECK HARNESS AND CONNECTOR (DLC3 - ABSORBER CONTROL ECU)
1. Check for open and short circuit in harness and connector between terminal Ts of DLC3 and absorber control ECU (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
- NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
- OK: CHECK AND REPLACE ABSORBER CONTROL ECU (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )