TC and CG Terminal Circuit: Procedure

1. Disconnect the E74 ECU connector.
   Fig 1: Checking Harness And Connector (Tire Pressure Warning ECU - DLC3)

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2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   E74-3 (TC) - E1-13 (TC)	Always	Below 1 Ω
   E74-3 (TC) - Body ground	Always	10 kΩ or higher
   E1-4 (CG) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU 

OK → See step   2