Inspection Procedure

1. Turn the engine switch off.
2. Disconnect the ECM connectors (E4) and (A5).
3. Measure the resistance according to the value(s) in WIRE HARNESS (+B1, +B, E) (RESISTANCE)  .

   Standard resistance 

   WIRE HARNESS (+B1, +B, E) (RESISTANCE)
   
   

   Tester Connection	Condition	Specified Value
   E4-7 (E1) - Body ground	Always	Below 1 ohms

4. Measure the voltage according to the value(s) in WIRE HARNESS (+B1, +B, E) (VOLTAGE)  .

Standard voltage 

Fig 1: Checking Wire Harness (+B1, +B, E)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE ECM