Toyota Tundra. Manual — part 2416
Fig. 100: Air Outlets And Airflow Volume Reference Chart - For Crewmax (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
Use these procedures to troubleshoot the air conditioning system.
*: Use the Techstream.
1. VEHICLE BROUGHT TO WORKSHOP
2. INSPECT BATTERY VOLTAGE
Standard Voltage:
11 to 14 V
If the voltage is below 11V, recharge or replace the battery before proceeding.
3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
a. Use the Techstream to check if the CAN communication system is functioning normally.
Result
2009 Toyota Tundra
2009 HVAC Air Conditioning - Tundra
RESULT REFERENCE
B: GO TO CAN COMMUNICATION SYSTEM (See PRECAUTION )
A: Go to Next Step
4. CHECK FOR DTC*
a. Check for DTCs and note any codes that are output (see DTC CHECK/CLEAR ).
b. Delete the DTC (see DTC CHECK/CLEAR ).
c. Recheck for DTCs. Based on the DTCs output above, try to force output of the air conditioning
system DTC by simulating the operation indicated by the DTC.
Result
RESULT REFERENCE
B: GO TO STEP 7
A: Go to Next Step
5. PROBLEM SYMPTOMS TABLE
a. Refer to the PROBLEM SYMPTOMS TABLE .
Result
RESULT REFERENCE
B: GO TO STEP 7
A: Go to Next Step
6. OVERALL ANALYSIS AND TROUBLESHOOTING*
a. DATA LIST/ACTIVE TEST (see DATA LIST/ACTIVE TEST )
b. Terminals of ECU (see TERMINALS OF ECU )
c. On-vehicle Inspection
Result
Proceed to
CAN DTC is not output
A
CAN DTC is output
B
Result
Proceed to
DTC is not output
A
DTC is output
B
Result
Proceed to
Fault is not listed in problem symptoms table
A
Fault is listed in problem symptoms table
B
2009 Toyota Tundra
2009 HVAC Air Conditioning - Tundra
d. Inspection
7. ADJUST, REPAIR OR REPLACE
NEXT: END
CUSTOMIZE PARAMETERS
1. CUSTOMIZING FUNCTION WITH TECHSTREAM
a. Connect the Techstream to the DLC3.
b. Turn the ignition switch ON.
c. Turn the Techstream on.
d. Enter the following menus: Customize Setting.
e. Select the setting by referring to the table below.
Air Conditioner
CUSTOMIZE PARAMETERS - AIR CONDITIONER
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking
the suspected areas in the order they are listed. Replace parts as necessary.
Air conditioning system
PROBLEM SYMPTOMS CHART
NOTE:
When the customer requests a change in a function, first make sure
that the function can be customized.
Be sure to make a note of the current settings before customizing.
When troubleshooting a function, first make sure that the function is
set to the default setting.
Display
Default
Contents
Setting
Ambient
Temperature Shift
Normal
Function to control the shifted ambient
temperature in relation to the displayed
ambient temperature
+3 C/+2 C/+1
C/Normal/-1 C/-2 C/-3
C
Symptom
Suspected Area
Refer To
IG power source circuit
IG POWER SOURCE CIRCUIT
LIN communication system
HOW TO PROCEED WITH
TROUBLESHOOTING
2009 Toyota Tundra
2009 HVAC Air Conditioning - Tundra
All functions of the A/C system
do not operate
Integration control and panel (for
Column Shift Type)
INTEGRATION CONTROL
AND PANEL (FOR COLUMN
SHIFT TYPE)
Integration control and panel (for
Floor Shift Type)
INTEGRATION CONTROL
AND PANEL (FOR FLOOR
SHIFT TYPE)
Air conditioning amplifier
AIR CONDITIONING
AMPLIFIER
Air Flow Control: No blower
operation
Blower motor circuit
BLOWER MOTOR CIRCUIT
LIN communication system
HOW TO PROCEED WITH
TROUBLESHOOTING
Integration control and panel (for
Column Shift Type)
INTEGRATION CONTROL
AND PANEL (FOR COLUMN
SHIFT TYPE)
Integration control and panel (for
Floor Shift Type)
INTEGRATION CONTROL
AND PANEL (FOR FLOOR
SHIFT TYPE)
Air conditioning amplifier
AIR CONDITIONING
AMPLIFIER
Air Flow Control: No blower
control
Blower motor circuit
BLOWER MOTOR CIRCUIT
LIN communication system
HOW TO PROCEED WITH
TROUBLESHOOTING
Integration control and panel (for
Column Shift Type)
INTEGRATION CONTROL
AND PANEL (FOR COLUMN
SHIFT TYPE)
Integration control and panel (for
Floor Shift Type)
INTEGRATION CONTROL
AND PANEL (FOR FLOOR
SHIFT TYPE)
Air conditioning amplifier
AIR CONDITIONING
AMPLIFIER
Air Flow Control: Insufficient air
flow
Blower motor circuit
BLOWER MOTOR CIRCUIT
Air conditioning amplifier
AIR CONDITIONING
AMPLIFIER
Refrigerant volume
REFRIGERANT
Refrigerant pressure
REFRIGERANT
Pressure switch circuit
DTC B1423/23 PRESSURE
SENSOR CIRCUIT
Air conditioning compressor
magnetic clutch circuit
AIR CONDITIONING
COMPRESSOR MAGNETIC
CLUTCH CIRCUIT
Compressor lock sensor circuit
DTC B1422/22 COMPRESSOR
LOCK SENSOR CIRCUIT
Air mix damper control servo
motor circuit (for Driver Side)
DTC B1446/46 AIR MIX
DAMPER CONTROL SERVO
MOTOR CIRCUIT (DRIVER
2009 Toyota Tundra
2009 HVAC Air Conditioning - Tundra
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