Theft Deterrent System
TERMINALS OF ECU1. CHECK INSTRUMENT PANEL J/B ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
a. Disconnect the B4, B5, B6 and B7 ECU connectors.
b. Disconnect the 1A, 1D, 1F and 1O J/B connectors.
c. Measure the voltage and resistance between each terminal of the wire harness side connectors and body ground.
d. Reconnect the B4, B5, B6 and B7 ECU connectors.
e. Reconnect the 1A, 1D, 1F, 1M and 1O J/B connectors.
f. Measure the voltage between each terminal of the connectors and the body ground.
If the result is not as specified, the J/B assembly (body ECU) may have a malfunction.