Toyota Tundra (2015 year). Manual — part 2250
STEP
NO.
DISPLAY
CODE
CONDITION
BLOWER
LEVEL
AIR MIX
DAMPER
AIRFLOW
VENT
AIR INLET DAMPER
COMPRESSOR
5
4
17
50% open
B/L
RECIRCULATION
ON
6
5
17
50% open
B/L
RECIRCULATION
ON
7
6
17
50% open
FOOT
FRESH
ON
8
7
17
100% open
FOOT-0
FRESH
ON
9
8
17
100% open
F/D
FRESH
ON
10
9
31
100% open
DEF
FRESH
ON
AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic A...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000002VXB00MX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System): B1411/11;
Room Temperature Sensor Circuit; 2015 MY Tundra [08/2014 - ]
DTC
B1411/11 Room Temperature Sensor Circuit
DESCRIPTION
The room temperature sensor is installed in the instrument panel to detect the room temperature and control the
increases, the resistance decreases.
The air conditioning amplifier applies voltage (5 V) to the room temperature sensor and reads voltage changes as
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
B1411/11
Open or short in room
temperature sensor circuit
Room temperature sensor
Harness or connector between room temperature
sensor and air conditioning amplifier
Air conditioning amplifier
WIRING DIAGRAM
INSPECTION PROCEDURE
AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic A...
A
PROCEDURE
1.
READ VALUE USING TECHSTREAM (ROOM TEMPERATURE SENSOR)
(a) Use the Data List to check if the room temperature sensor is functioning properly.
Air Conditioner
TESTER DISPLAY
MEASUREMENT ITEM /
RANGE
NORMAL CONDITION
DIAGNOSTIC NOTE
Room Temperature
Sensor
Room temperature
sensor /
Min.: -6.5°C (20.3°F)
Max.: 57.25°C
(135.05°F)
Actual room temperature is
displayed
Open in circuit: -6.5°C
(20.3°F)
Short in circuit: 57.25°C
(135.05°F)
OK:
The display is as specified in the normal condition.
Result
RESULT
PROCEED TO
NG
A
OK (Checking from the PROBLEM SYMPTOMS TABLE)
B
OK (Checking from the DTC)
C
B
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN
PROBLEM SYMPTOMS TABLE
C
REPLACE AIR CONDITIONING AMPLIFIER
2.
INSPECT ROOM TEMPERATURE SENSOR
AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic A...
OK
(a) Remove the room temperature sensor
.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
1 - 2
10°C (50°F)
3.00 to 3.73 kΩ
15°C (59°F)
2.45 to 2.88 kΩ
20°C (68°F)
1.95 to 2.30 kΩ
25°C (77°F)
1.60 to 1.80 kΩ
30°C (86°F)
1.28 to 1.47 kΩ
35°C (95°F)
1.00 to 1.22 kΩ
40°C (104°F)
0.80 to 1.00 kΩ
45°C (113°F)
0.65 to 0.85 kΩ
50°C (122°F)
0.50 to 0.70 kΩ
55°C (131°F)
0.44 to 0.60 kΩ
60°C (140°F)
0.36 to 0.50 kΩ
NOTICE:
As the temperature increases, the resistance decreases (see the
graph).
NG
REPLACE ROOM TEMPERATURE SENSOR
3.
CHECK HARNESS AND CONNECTOR (ROOM TEMPERATURE SENSOR - AIR
CONDITIONING AMPLIFIER)
AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic A...
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