U–48
CONTROL SYSTEM
1C
Blower motor
control signal
Power MOS FET
Fan switch is OFF
Below 1.0
•
Inspect terminal voltage of
climate control unit (1A)
Fan switch is at manual
LO
4.1
Fan switch is at manual
HI
7.9
1D
—
—
—
—
—
1E
Rear window
defroster SW
signal
Rear window
defroster relay
Rear window defroster
switch is off
12
•
Inspect for continuity or
short circuit (Climate control
unit—rear window defroster
relay: 1E—E)
•
Inspect rear window
defroster relay
Rear window defroster
switch is on
Below 1.0
•
Inspect terminal voltage of
climate control unit (1H, 1L)
•
Inspect audio switch panel
1F
On-board
diagnostic signal
A/C check
connector
Terminal A of A/C check
connector is shorted.
Below 1.0
•
Inspect for continuity
(Climate control unit—A/C
check connector: 1F—A)
Other
5.4
•
Inspect short circuit (Climate
control unit—A/C check
connector: 1F—A)
•
Inspect terminal voltage of
climate control unit (2H, 2L)
1G
—
—
—
—
—
1H
—
—
—
—
—
1I
GND
•
Cabin
temperature
sensor
•
Evaporator
temperature
sensor
•
Ambient
temperature
sensor
•
Water
temperature
sensor
•
Air mix actuator
•
Airflow mode
actuator
Under any condition
Below 1.0
•
Inspect terminal voltage of
climate control unit (2L)
1J
—
—
—
—
—
1K
Ambient
temperature
sensor input
Ambient
temperature sensor
Depends on temperature
surrounding sensor
See Figure
2
•
Inspect for continuity
(Climate control unit—
ambient temperature
sensor: 1K—B, 1I—A)
•
Inspect for short circuit
(Climate control unit—
ambient temperature
sensor: 1K—B)
•
Inspect ambient
temperature sensor
•
Inspect terminal voltage of
climate control unit (2H, 2L)
1L
—
—
—
—
—
1M
Cabin
temperature
sensor input
Cabin temperature
sensor
Depends on temperature
surrounding sensor
See Figure
3
•
Inspect for continuity
(Climate control unit— cabin
temperature sensor: 1M—B,
1I—A)
•
Inspect for short circuit
(Climate control unit— cabin
temperature sensor: 1M—B)
•
Inspect cabin temperature
sensor
•
Inspect terminal voltage of
climate control unit (2H, 2L)
1N
—
—
—
—
—
Terminal
Signal
Connected to
Test condition
Voltage (V)
Action
Summary of Contents for 6 2002
Page 104: ...F 4 LOCATION INDEX End Of Sie FUEL SYSTEM A6E390001006W01 Engine Room Side A6E3912W015...
Page 151: ...F 36 EXHAUST SYSTEM A6E3914W002...
Page 312: ...F 182 TROUBLESHOOTING QUICK DIAGNOSTIC CHART A6E398018881W02 A6E3980W001...
Page 313: ...TROUBLESHOOTING F 183 F A6E3980W002...
Page 314: ...F 184 TROUBLESHOOTING A6E3980W003...
Page 315: ...TROUBLESHOOTING F 185 F End Of Sie A6E3980W004...
Page 410: ...K 3 K...
Page 526: ...TROUBLESHOOTING K 115 K QUICK DIAGNOSIS CHART A6E568001030W04 A6E5680W001...
Page 527: ...K 116 TROUBLESHOOTING End Of Sie A6E5680W002...
Page 653: ...ON BOARD DIAGNOSTIC ABS TCS P 57 P...
Page 701: ...TROUBLESHOOTING ABS TCS DYNAMIC STABILITY CONTROL P 105 P Vehicle with ABS TCS A6E6980W002...
Page 819: ...OUTSIDE MIRROR S 60 2 THIS PAGE IS INTENTIONALLY LEFT BLANK End Of Sie...
Page 971: ...T 76 WARNING AND INDICATOR SYSTEM Operating Order A6E8118W009...
Page 1150: ...U 4 LOCATION INDEX End Of Sie CONTROL SYSTEM A6E850001042W01 L H D A6E8500W003 A6E8500W004...
Page 1152: ...U 6 LOCATION INDEX R H D A6E8500W005 A6E8500W006...