THEFT-DETERRENT SIREN INSPECTION

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1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Remove the theft-deterrent siren with the connector connected. (See THEFT-DETERRENT SIREN REMOVAL/INSTALLATION.)

3.  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

4.  Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).

•  If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.
?  If the system does not work normally even though the parts or related wiring harnesses do not have any malfunction, replace the theft-deterrent siren. (See THEFT-DETERRENT SIREN REMOVAL/INSTALLATION.)


Terminal Voltage Table (Reference)

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Terminal

Signal name

Connected to

Measurement condition

Voltage (V)

Inspection item(s)
A
DATA
Rear body control module (RBCM)
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
B
Ground
Body ground
Under any condition
1.0 or less
Ground
C
Power supply
INTERIOR 10A fuse
Under any condition
B+
•  ROOM 25A fuse
•  INTERIOR 10A fuse
•  Battery