Theft Deterrent System

THEFT DETERRENT: THEFT DETERRENT SYSTEM: TERMINALS OF ECU

1. CHECK INSTRUMENT PANEL J/B ASSEMBLY (MULTIPLEX NETWORK BODY ECU)

(a) Disconnect the B6, B7 and B9 ECU connectors.





(b) Disconnect the 1A, 1C, 1L and 1K J/B connectors.

(c) Measure the voltage and resistance between each terminal of the wire harness side connectors and body ground.





(d) If the result is not as specified, there may be a malfunction on the wire harness side.

(e) Reconnect the B6, B7 and B9 ECU connectors.

(f) Reconnect the 1A, 1C, 1L and 1K J/B connectors.

(g) Measure the voltage between each terminal of the connectors and the body ground.





(h) *: with Engine Immobiliser System

If the result is not as specified, the J/B assembly (body ECU) may have a malfunction.