CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER]
CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER]
SM2566260
id0740a1802200
1.Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
2.Remove the climate control unit with the connector connected. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER (US)].)
3.Connect the negative battery terminal.
4.Switch the ignition ON (engine off or on).
5.Connect the negative (-) lead of the tester to body ground.
6.Insert the positive (+) lead of the tester into each climate control unit terminal and measure the voltage according to the terminal voltage table.
-
• If there is any malfunction, inspect the parts under “Inspection item (s)”.
Terminal Voltage Table (Reference)
am3zzw00027679
|
|
Terminal |
Signal name |
Connected to |
Measurement condition |
Voltage (V) |
Inspection item (s) |
|---|---|---|---|---|---|
|
1A
|
B+
|
F19 10 A fuse
|
Under any condition
|
B+
|
• Related wiring harness
• F19 10 A fuse
|
|
1B
|
—
|
—
|
—
|
—
|
—
|
|
1C
|
IG
|
F47 15 A fuse
|
Switch the ignition ON (engine off or on)
|
B+
|
• Related wiring harness
• F47 15 A fuse
|
|
Switch the ignition off
|
1.0 or less
|
||||
|
1D
|
Glove compartment light
|
Glove compartment light control
|
Light switch at TNS position
|
B+
|
• Related wiring harness
|
|
Light switch at OFF position
|
1.0 or less
|
||||
|
1E
|
—
|
—
|
—
|
—
|
—
|
|
1F
|
—
|
—
|
—
|
—
|
—
|
|
1G
|
GND
|
Body ground
|
Under any condition
|
1.0 or less
|
• Related wiring harness
|
|
1H
|
—
|
—
|
—
|
—
|
—
|
|
1I
|
HS_CAN_H
|
CAN related module
|
Because this terminal is for communication, integrity determination by terminal voltage is not possible.
|
• Related wiring harness
|
|
|
1J
|
HS_CAN_H
|
CAN related module
|
Because this terminal is for communication, integrity determination by terminal voltage is not possible.
|
• Related wiring harness
|
|
|
1K
|
HS_CAN_L
|
CAN related module
|
Because this terminal is for communication, integrity determination by terminal voltage is not possible.
|
• Related wiring harness
|
|
|
1L
|
HS_CAN_L
|
CAN related module
|
Because this terminal is for communication, integrity determination by terminal voltage is not possible.
|
• Related wiring harness
|
|
|
1M
|
—
|
—
|
—
|
—
|
—
|
|
1N
|
—
|
—
|
—
|
—
|
—
|
|
1O
|
—
|
—
|
—
|
—
|
—
|
|
1P
|
—
|
—
|
—
|
—
|
—
|
|
2A
|
HS_CAN_H
|
CAN related module
|
Because this terminal is for communication, integrity determination by terminal voltage is not possible.
|
• Related wiring harness
|
|
|
2B
|
Passenger compartment temperature sensor input
|
Passenger compartment temperature sensor
|
Compared with temperature detected by passenger compartment temperature sensor
|
Refer to graph
|
• Related wiring harness
• Passenger compartment temperature sensor
|
|
2C
|
HS_CAN_L
|
CAN related module
|
Because this terminal is for communication, integrity determination by terminal voltage is not possible.
|
• Related wiring harness
|
|
|
2D
|
Sensor GND
|
Passenger compartment temperature sensor
|
Under any condition
|
1.0 or less
|
• Related wiring harness
• Passenger compartment temperature sensor
|
|
2E
|
—
|
—
|
—
|
—
|
—
|
|
2F
|
—
|
—
|
—
|
—
|
—
|
|
2G
|
—
|
—
|
—
|
—
|
—
|
|
2H
|
—
|
—
|
—
|
—
|
—
|
 |