Toyota Tundra (2015 year). Manual — part 121
A
PROCEDURE
1.
CHECK VEHICLE CONDITION
(a) Check the vehicle condition.
Result
RESULT
PROCEED TO
for 7 or 9 Speakers
A
for 12 Speakers
B
B
GO TO STEP 4
2.
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY -
BATTERY AND BODY GROUND)
(a) Disconnect the stereo component amplifier assembly
connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J144-7 (GND) - Body ground
Always
Below 1 Ω
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J144-4 (+B) - Body ground
Always
11 to 14 V
Text in Illustration
NAVIGATION: NAVIGATION SYSTEM: Stereo Component Amplifier...
OK
*a
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
3.
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY -
NAVIGATION RECEIVER ASSEMBLY)
(a) Disconnect the J144 stereo component amplifier assembly connector.
(b) Disconnect the J133 navigation receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J144-9 (AMP) - J133-9 (AMP)
Always
Below 1 Ω
J144-9 (AMP) - 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
4.
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY -
BATTERY AND BODY GROUND)
NAVIGATION: NAVIGATION SYSTEM: Stereo Component Amplifier...
(a) Disconnect the stereo component amplifier assembly
connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J143-6 (GND) - Body ground
Always
Below 1 Ω
J143-7 (GND2) - Body ground
Always
Below 1 Ω
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J142-1 (+B) - J143-6 (GND)
Always
11 to 14 V
J142-5 (+B2) - J143-6 (GND)
Always
11 to 14 V
J141-12 (ACC) - J143-6 (GND)
Ignition switch ACC
11 to 14 V
Text in Illustration
*a
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN
PROBLEM SYMPTOMS TABLE
NAVIGATION: NAVIGATION SYSTEM: Stereo Component Amplifier...
Last Modified: 9-16-2014
6.6 J
Doc ID: RM000003RL4017X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: NAVIGATION: NAVIGATION SYSTEM: Navigation Receiver Assembly Power Source Circuit; 2015 MY
Tundra [08/2014 - ]
Navigation Receiver Assembly Power Source Circuit
DESCRIPTION
This circuit provides power to the navigation receiver assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1.
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - BATTERY
AND BODY GROUND)
NAVIGATION: NAVIGATION SYSTEM: Navigation Receiver Assemb...
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