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INDICATOR UNIT INSPECTION

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Terminal Voltage Inspection

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

2.  Remove the sensor cover.(See SENSOR COVER 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).

―  If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the indicator unit. (See INDICATOR UNIT REMOVAL/INSTALLATION.)

Terminal Voltage Table (Reference)

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Terminal	Signal name	Connected to	Measurement conditions		Voltage (V)	Inspection item(s)
A	Power supply (IG1)	IG1 relay	Ignition switch ON (engine off or on)		B+	•  F47 15A fuse •  IG1 relay •  Related wiring harness
			Ignition switch off or ACC		1.0 or less
B	—	—	—		—	—
C	IG_DCDC	IG1 relay	Ignition switch ON (engine off or on)		B+	•  F47 15A fuse •  Ignition relay (IG1_STAB) •  Related wiring harness
			Ignition switch off or ACC		1.0 or less
D	Reverse	Auto dimming rearview mirror	R position		B+	•  Auto dimming rearview mirror •  Related wiring harness
E	—	—	—		—	—
F	Ground	Body ground	Under any condition		Approx. 0	•  GND point •  Related wiring harness
G	LIN_CBCM	BCM	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
H	—	—	—		—	—
I	—	—	—		—	—
J	—	—	—		—	—
K	—	—	—		—	—
L	—	—	—		—	—
M	—	—	—		—	—
N	—	—	—		—	—
O	—	—	—		—	—
P	—	—	—		—	—