Toyota Tundra (2015 year). Manual — part 106
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J135-17 (SPD) - J28-29 (+S)
Always
Below 1 Ω
J135-17 (SPD) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN
PROBLEM SYMPTOMS TABLE
NAVIGATION: NAVIGATION SYSTEM: Vehicle Speed Signal Circuit ...
Last Modified: 9-16-2014
6.6 J
Doc ID: RM0000012CK0S6X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: NAVIGATION: NAVIGATION SYSTEM: Steering Pad Switch Circuit; 2015 MY Tundra [08/2014 - ]
Steering Pad Switch Circuit
DESCRIPTION
This circuit sends an operation signal from the steering pad switch assembly to the navigation receiver assembly.
If there is an open in the circuit, the audio system cannot be operated using the steering pad switch assembly.
If there is a short in the circuit, the same condition as when a switch is continuously depressed occurs.
Therefore, the navigation receiver assembly cannot be operated using the steering pad switch assembly, and also
the navigation receiver assembly itself cannot function.
WIRING DIAGRAM
NAVIGATION: NAVIGATION SYSTEM: Steering Pad Switch Circuit;...
INSPECTION PROCEDURE
NOTICE:
The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as
.
PROCEDURE
1.
INSPECT STEERING PAD SWITCH ASSEMBLY
(a) Remove the steering pad switch assembly
.
NAVIGATION: NAVIGATION SYSTEM: Steering Pad Switch Circuit;...
OK
OK
(b) Inspect the steering pad switch assembly
.
NG
REPLACE STEERING PAD SWITCH ASSEMBLY
2.
INSPECT SPIRAL CABLE SUB-ASSEMBLY
(a) Remove the spiral cable sub-assembly
.
(b) Inspect the spiral cable sub-assembly
.
NG
REPLACE SPIRAL CABLE SUB-ASSEMBLY
3.
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - SPIRAL
CABLE SUB-ASSEMBLY)
(a) Disconnect the J135 navigation receiver assembly connector.
(b) Disconnect the J45 spiral cable sub-assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance::
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J135-21 (SW1) - J45-6 (AU1)
Always
Below 1 Ω
J135-22 (SW2) - J45-5 (AU2)
Always
Below 1 Ω
J135-23 (SWG) - J45-3 (EAU)
Always
Below 1 Ω
J135-24 (SW3) - J45-4 (AU3)
Always
Below 1 Ω
J135-21 (SW1) - Body ground
Always
10 kΩ or higher
J135-22 (SW2) - Body ground
Always
10 kΩ or higher
J135-23 (SWG) - Body ground
Always
10 kΩ or higher
J135-24 (SW3) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
NAVIGATION: NAVIGATION SYSTEM: Steering Pad Switch Circuit;...
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