Toyota Tundra (2015 year). Manual — part 2337
Main Body
TESTER
DISPLAY
MEASUREMENT ITEM/RANGE
NORMAL CONDITION
DIAGNOSTIC
NOTE
Door Key
SW-Lock
Driver door lock/unlock switch lock signal
(Key-linked lock switch) / ON or OFF
ON: Driver side door key
cylinder is turned to lock
position
OFF: Driver side door key
cylinder is not turned
-
Door Key
SW-Unlock
Driver door lock/unlock switch unlock signal
(Key-linked unlock switch) / ON or OFF
ON: Driver side door key
cylinder is turned to unlock
position
OFF: Driver side door key
cylinder is not turned
-
D Door Key
SW-UL
Driver door lock/unlock switch unlock signal
(2 step key-linked unlock switch) / ON or OFF
ON: Driver side door key
cylinder is turned to unlock
position
OFF: Driver side door key
cylinder is not turned
-
OK:
The display is as specified in the normal condition column.
NG
GO TO STEP 2
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN
IN PROBLEM SYMPTOMS TABLE
2.
INSPECT FRONT DOOR LOCK MOTOR ASSEMBLY LH (DOOR KEY LOCK AND UNLOCK
SWITCH)
DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Driver Sid...
A
(a) Remove the front door lock motor LH.
for Double Cab:
for Regular Cab:
for CrewMax:
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance:
TESTER
CONNECTION
SWITCH CONDITION
SPECIFIED
CONDITION
7 (E) - 9 (L)
ON (Door lock set to
LOCK)
Below 1 Ω
7 (E) - 9 (L)
7 (E) - 10 (UL)
OFF (Free)
10 kΩ or higher
7 (E) - 10 (UL)
ON (Door lock set to
UNLOCK)
Below 1 Ω
Result
RESULT
PROCEED TO
OK
A
NG (for Double Cab)
B
NG (for Regular Cab)
C
NG (for CrewMax)
D
B
REPLACE FRONT DOOR LOCK MOTOR ASSEMBLY LH
C
REPLACE FRONT DOOR LOCK MOTOR ASSEMBLY LH
D
REPLACE FRONT DOOR LOCK MOTOR ASSEMBLY LH
3.
CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK MOTOR LH - MAIN BODY
ECU)
DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Driver Sid...
(a) Disconnect the N4 door lock connector.
(b) Disconnect the DD and J4 ECU connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
N4-9 (L) - DD-53 (L2)
Always
Below 1 Ω
N4-10 (UL) - J4-10 (UL3)
N4-7 (E) - Body ground
N4-10 (UL) - Body ground
Always
10 kΩ or higher
N4-9 (L) - Body ground
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE MAIN BODY ECU
DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Driver Sid...
Last Modified: 9-16-2014
6.6 J
Doc ID: RM000002VS500RX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Door Control Switch Circuit; 2015 MY Tundra
[08/2014 - ]
Door Control Switch Circuit
DESCRIPTION
for Driver Side:
connected to the door control switch, and door lock/unlock request signals (by door control switch
operation) are input to the ECU. The main body ECU constantly applies voltage to terminal 1 (for regular
regular cab). The main body ECU determines that this is a door lock request signal input. The main body
body ECU determines that this is a door unlock request signal input.
for Passenger Side:
body ECU determines that this is a door lock request signal input. The main body ECU also applies constant
is a door unlock request signal input.
WIRING DIAGRAM
DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Door Contr...
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