SYSTEM DIAGRAM

System Description
Operation CheckRemoval
REMOVAL
PROCEDURE
1. REMOVE RADIATOR GRILLE
(a) w/ Toyota Safety Sense P
(1) Disconnect the connector.
(2) Disengage the clamp.
(b) Put protective tape around the radiator grille.
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Terminals Of Ecu
TERMINALS OF ECU
1. OCCUPANT DETECTION ECU
Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specification
+B (O5-1) -
GND (O5-3)
R - W-B
Battery
Ignition switch on
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Terminals Of Ecu
TERMINALS OF ECU
1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the C27 and C29 certification ECU (smart key ECU assembly) connectors.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
HINT:
Measure the values on the wire harness side w ...