Terminal

Signal name

Connected to

Measurement condition

Voltage (V)

Inspection item (s)

A

IG2

A/C 7.5 A fuse

IG SW ON

B+

• Wiring harness: continuity, short circuit (Climate control unit— fuse: A—A/C 7.5 A)

• A/C 7.5 A fuse

IG SW LOCK

1.0 or less

• Wiring harness: continuity, short circuit (Climate control unit— fuse: A—A/C 7.5 A)

B

B+

ROOM 15 A fuse

Under any condition

B+

• Wiring harness: continuity, short circuit (Climate control unit— fuse: B—ROOM 15 A)

• ROOM 15 A fuse

C

Blower fan speed control

Power MOS FET

Fan stopped

1.0 or less

• Wiring harness: continuity, short circuit (Climate control unit—power MOS FET: C—C)

• Power MOS FET

Fan: manual 1 (LO) — 24

2.7—3.4

Fan: manual 25 (HI)

9.6

D

TNS signal

TNS relay

Headlight switch OFF

1.0 or less

• Wiring harness: short circuit (Climate control unit—TNS relay: D—D)

• TNS relay

• Headlight switch

Headlight switch ON

B+

• Wiring harness: continuity, short circuit (Climate control unit—TNS relay: D—D)

• TNS relay

• Headlight switch

E

Blower motor feedback

Power MOS FET

Fan stopped

B+

1. Wiring harness: continuity, short circuit (Climate control unit—power MOS FET: E—B)

2. Power MOS FET

3. Blower motor

4. Blower relay

5. HEATER 40 A fuse

6. Power MOS FET replacement

Fan: manual LO

8.17

Fan: manual HI

0.6

F

Panel control signal

Instrument cluster

Headlight switch OFF

0

• Wiring harness: continuity (Climate control unit—instrument cluster: F—1F)

• Instrument cluster

• Climate control unit: terminal voltage (D)

Headlight switch ON

2.7

• Wiring harness: short circuit (Climate control unit—instrument cluster: F—1F)

G

Actuator power

• Air intake actuator

• Air mix actuator

• Airflow mode actuator

IG SW ON

B+

• Wiring harness: continuity, short circuit (Climate control unit— air intake actuator, air mix actuator, air flow mode actuator: G—A, A, A)

• Air intake actuator

• Air mix actuator

• Airflow mode actuator

IG SW LOCK

1.0 or less

H

GND

Body ground

Under any condition

1.0 or less

• Wiring harness: continuity (Climate control unit—GND: H—GND)

I

Plus Signal

—

—

—

—

J

—

—

—

—

—

K

A/C

Refrigerant pressure switch

A/C switch ON, fan switch at 1st

1.0 or less

• Wiring harness: short circuit (Climate control unit—refrigerant pressure switch: K—A)

A/C switch OFF

B+

• Wiring harness: continuity, short circuit (Climate control unit—refrigerant pressure switch: K—A) (Refrigerant pressure switch—PCM: C—1J)

• Refrigerant pressure switch

• PCM: terminal voltage (1J)

L

—

—

—

—

—

M

Evaporator temperature sensor input

Evaporator temperature sensor

Compared with temperature detected by evaporator temperature sensor

Refer to graph 1

• Wiring harness: continuity (Climate control unit—evaporator temperature sensor: M—B, S—A)

• Wiring harness: short circuit (Climate control unit—evaporator temperature sensor: M—B)

• Evaporator temperature sensor

N

Rear window defroster operation

Rear window defroster relay

Rear window defroster switch OFF

B+

• Wiring harness: continuity, short circuit (Climate control unit—rear window defroster relay: N—E)

• Rear window defroster relay

Rear window defroster switch ON

1.0 or less

O

—

—

—

—

—

P

—

—

—

—

—

Q

—

—

—

—

—

R

—

—

—

—

—

S

Sensor GND

Evaporator temperature sensor

Under any condition

1.0 or less

• Wiring harness: continuity (Climate control unit—GND: S—GND)

T

—

—

—

—

—

—