Toyota Tundra (2015 year). Manual — part 2354
OK
(a) Disconnect the Q7 receiver connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.
Standard voltage:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
Q7-5 (+B) - Body Ground
Always
11 to 14 V
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
Q7-1 (GND) - Body ground
Always
Below 1 Ω
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
8.
CHECK DOOR CONTROL RECEIVER (OUTPUT)
DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: Only Wi...
(a) Measure the voltage according to the value(s) in the table
below.
Standard voltage:
TESTER
CONNECTION
SWITCH CONDITION
SPECIFIED
CONDITION
Q7-2 (RDA) -
Body ground
Ignition switch OFF, all doors
closed and transmitter switch not
pressed
11 to 14 V
Ignition switch OFF, all doors
closed and transmitter switch
pressed
Pulse
generation
OK:
Door control receiver outputs pulse generation.
Result
RESULT
PROCEED TO
OK
A
NG (for Regular Cab)
B
NG (for Double Cab)
C
NG (for CrewMax)
D
B
REPLACE DOOR CONTROL RECEIVER
C
REPLACE DOOR CONTROL RECEIVER
D
REPLACE DOOR CONTROL RECEIVER
A
REPLACE MAIN BODY ECU
DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: Only Wi...
Last Modified: 9-16-2014
6.6 J
Doc ID: RM000001WYD02SX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: No Answer-Back; 2015 MY Tundra [08/2014 -
]
No Answer-Back
DESCRIPTION
In some cases, wireless door lock control functions are normal but the hazard warning lights and/or wireless door
lock buzzer answer-back function(s) do not operate. In such cases, the main body ECU's hazard warning lights and
wireless door lock buzzer signal outputs may be malfunctioning.
NOTICE:
WIRING DIAGRAM
INSPECTION PROCEDURE
DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: No An...
A
PROCEDURE
1.
CHECK WIRELESS DOOR LOCK CONTROL FUNCTION
(a) Check the wireless door lock control functions by operating the transmitter switch.
Result
RESULT
PROCEED TO
Wireless door lock functions are normal but hazard warning light answer-back does not occur
A
Wireless door lock functions are normal but wireless door lock buzzer answer-back does not occur
B
Doors cannot be locked and unlocked with transmitter
C
B
GO TO STEP 3
C
Go to Only Wireless Control Function is Inoperative
2.
PERFORM ACTIVE TEST USING TECHSTREAM (TURN SIGNAL FLASHER RELAY)
(a) Select the Active Test, use the Techstream to generate a control command, and then check that
the hazard warning lights flash.
Main body
TESTER DISPLAY
TEST PART
CONTROL RANGE
DIAGNOSTIC NOTE
Hazard
Flasher relay
ON/OFF
-
OK:
Hazard warning lights turn ON or OFF.
NG
Go to LIGHTING SYSTEM
OK
REPLACE MAIN BODY ECU (DRIVER SIDE
JUNCTION BLOCK)
3.
PERFORM ACTIVE TEST USING TECHSTREAM (WIRELESS DOOR LOCK BUZZER)
(a) Select the Active Test, use the Techstream to generate a control command, and then check that
the wireless buzzer operates normally.
DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: No An...
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