Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

Toyota Tacoma (2015-2018) Service Manual / Navigation / Multi Info Display / Navigation System / Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

DESCRIPTION

The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the navigation receiver assembly via this circuit.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, navigation receiver assembly or speakers.

WIRING DIAGRAM

PROCEDURE

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY)

(a) Disconnect the N25 navigation receiver assembly connector.

(b) Disconnect the N3 No. 1 stereo jack adapter assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

N25-25 (ADPG) - N3-8 (AUXO)

Always

Below 1 Ω

N25-26 (VAR+) - N3-5 (ARO)

Always

Below 1 Ω

N25-28 (VAL+) - N3-6 (ALO)

Always

Below 1 Ω

N25-27 (VA-) - N3-7 (ASGN)

Always

Below 1 Ω

N25-11 (AGND) - N3-9 (AGND)

Always

Below 1 Ω

N25-25 (ADPG) - Body ground

Always

10 kΩ or higher

N25-26 (VAR+) - Body ground

Always

10 kΩ or higher

N25-28 (VAL+) - Body ground

Always

10 kΩ or higher

N25-27 (VA-) - Body ground

Always

10 kΩ or higher

N25-11 (AGND) - Body ground

Always

10 kΩ or higher

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Data Signal Circuit between Stereo Jack Adapter and Extension Module
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Data Signal Circuit between Navigation Receiver Assembly and Extension Module
DESCRIPTION The stereo component tuner assembly sends the sound data signal or image data signal from a device to the navigation receiver assembly via this circuit. WIRING DIAGRAM CAUTION / NOT ...

Other materials:

Reassembly
REASSEMBLY PROCEDURE 1. INSPECT CENTER NO. 2 SUPPORT BEARING ASSEMBLY (a) When turning the center No. 2 support bearing assembly with your hand, check that it turns smoothly without catching and that there are no cracks or damage. If there are any defects, replace it. 2. INSTALL CENTER NO. ...

Road Test
ROAD TEST 1. PROBLEM SYMPTOM CONFIRMATION (a) Based on the result of the customer problem analysis, try to reproduce the symptoms. If the problem is that the transmission does not shift up or down, or that the shift point is too high or too low, conduct the following road test referring to t ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN and multiplex communication system. *: Use the Techstream. PROCEDURE ...

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