Toyota Tundra (2015 year). Manual — part 2263
9.
CHECK HARNESS AND CONNECTOR (POWER SOURCE)
(a) Disconnect the J19 air conditioning amplifier connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J19-21 (B) - Body ground
Always
11 to 14 V
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE AIR CONDITIONING AMPLIFIER
AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic A...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000002VXO00TX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System): B1499/99;
Multiplex Communication Circuit; 2015 MY Tundra [08/2014 - ]
DTC
B1499/99 Multiplex Communication Circuit
DESCRIPTION
This DTC outputs when CAN communication error is occurred.
DTC CODE
DTC DETECTION CONDITION
TROUBLE AREA
B1499/99
Open in CAN communication circuit
CAN communication system
INSPECTION PROCEDURE
PROCEDURE
1.
CHECK FOR DTC
(a) Clear the DTC
.
(b) Check for the DTC
.
Result
RESULT
PROCEED TO
DTC B1499/99 is output
A
DTC B1499/99 is not output
B
B
USE SIMULATION METHOD TO CHECK
A
GO TO CAN COMMUNICATION SYSTEM
AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic A...
Last Modified: 9-16-2014
6.6 J
Doc ID: RM000002VXN00VX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System): Blower Motor
Circuit; 2015 MY Tundra [08/2014 - ]
Blower Motor Circuit
DESCRIPTION
The blower motor is operated by signals from the air conditioning amplifier. Blower motor speed signals are
transmitted by changes in the duty ratio.
Duty Ratio:
The blower motor controller controls the blower motor speed.
WIRING DIAGRAM
AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic A...
A
INSPECTION PROCEDURE
PROCEDURE
1.
PERFORM ACTIVE TEST USING TECHSTREAM (BLOWER MOTOR)
(a) Select the Active Test, using the Techstream to generate a control command, and then check that
the blower motor operates.
Air Conditioner
TESTER DISPLAY
TEST PART
CONTROL RANGE
DIAGNOSTIC NOTE
Blower Motor
Blower motor
Min.: 0, Max.: 31
-
Result
RESULT
PROCEED TO
NG (blower motor does not operate)
A
NG (blower motor operates but does not change speed)
B
OK
C
B
GO TO STEP 5
C
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN
PROBLEM SYMPTOMS TABLE
AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic A...
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