LS 460 RWD V8-4.6L (1UR-FSE) (2010)
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If the results match the examples above, 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.
Standard voltage (Fig. 4):
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If the results match the examples above, an open circuit exists in the wire harness between terminal 1 of connector B and terminal 1 of
connector C.
3. CHECK FOR SHORT CIRCUIT
(a) If the wire harness is ground shorted (Fig. 5), locate the section by conducting a resistance check with the body ground (below).
(b) Check the resistance with the body ground.