FJ Cruiser 4WD V6-4.0L (1GR-FE) (2007)
2. Disconnect connector B and measure the resistance between the connectors.
If the results match the examples, an open circuit exists between terminal 1 of connector B2 and terminal 1 of connector c.
c. Check the voltage.
1. In a circuit in which voltage is applied to the ECU connector terminal, an open circuit can be checked by conducting a voltage check.
With each connector still connected, measure the voltage between the body ground and these terminals (in this order): 1) terminal 1 of
connector A, 2) terminal 1 of connector B, and 3) terminal 1 of connector C.
If the results match the examples, an open circuit exists in the wire harness between terminal 1 of connector B and terminal 1 of connector C.
Check For Short Circuit
CHECK FOR SHORT CIRCUIT