TC and CG Terminal Circuit: Procedure

1. Turn the ignition switch to the ON position.
   Fig 1: Identifying DLC3 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value in the table below.

   Standard voltage

   Tester Connection	Specified Condition
   D1-13 (TC) - D1-4 (CG)	10 to 14 V

NG → See step   3 

OK: Go to next step 

1. Disconnect the suspension control ECU S16 connector.
   Fig 2: Identifying Suspension Control ECU S16 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the values in the table below.

   Standard resistance

   Tester Connection	Specified Condition
   S16-6 (TC) - D1-13 (TC)	Below 1 Ω
   S16-6 (TC) - Body ground	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → REPLACE SUSPENSION CONTROL ECU 

1. Measure the resistance according to the value in the table below.
   Fig 3: Identifying DLC3 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Specified Condition
   D1-4 (CG) - Body ground	Below 1 Ω

2. Disconnect the suspension control ECU S16 connector.
   Fig 4: Identifying Suspension Control ECU S16 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the values in the table below.

   Standard resistance

   Tester Connection	Specified Condition
   S16-6 (TC) - D1-13 (TC)	Below 1 Ω
   S16-6 (TC) - Body ground	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → REPLACE SUSPENSION CONTROL ECU