Inspection Procedure

CHECK HARNESS AND CONNECTOR (TC of DLC3-ECM)
1. Turn the ignition switch OFF.
2. Disconnect the E5 connector of ECM.
  
  Fig 1: Checking Harness & Connector (TC Of DLC3 - ECM)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the Fig 2 .
  Standard:
  
  Fig 2: Terminals Resistance Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 3: Checking Harness & Connector (TC Of DLC3 - ECM)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (TC of DLC3-ECM)
2. OK: GO TO NEXT STEP
CHECK HARNESS AND CONNECTOR (TC of DLC3-BODY GROUND)
1. Measure the resistance according to the value(s) in the Fig 4 .
  Standard:
  
  Fig 4: Terminals Resistance Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 5: Checking Harness & Connector (TC Of DLC3 - Body Ground)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPAIR OR REPLACE WIRE HARNESS AND EACH ECU (TC CIRCUIT)
2. OK: GO TO NEXT STEP.
CHECK HARNESS AND CONNECTOR (CG of DLC3-BODY GROUND)
1. Measure the resistance according to the value(s) in the Fig 6 .
  Standard:
  
  Fig 6: Terminals Resistance Reference Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 7: Checking Harness & Connector (CG Of DLC3 - Body Ground)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (CG of DLC3-BODY GROUND)
2. OK: REPLACE ECM (SEE REPLACEMENT )