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THEFT-DETERRENT SIREN INSPECTION

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

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 [(E)].)

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	Electrical supply unit	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
B	Ground	Body ground	Under any condition	Approx. 0	•  GND point •  Related wiring harness
C	Power supply	•  F50 15A fuse •  F27 25A fuse	Under any condition	B+	•  F50 15A fuse •  F27 25A fuse •  Related wiring harness