Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Data Signal Circuit between Navigation Receiver Assembly and Extension Module

Toyota Tacoma 2015-2018 Service Manual / Navigation / Multi Info Display / Navigation System / 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 / NOTICE / HINT

CAUTION / NOTICE / HINT

NOTICE:

After replacing the stereo component tuner assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - STEREO COMPONENT TUNER ASSEMBLY)

(a) Disconnect the N19, N27 and N28 navigation receiver assembly connectors.

(b) Disconnect the S52, S53 and S54 stereo component tuner assembly connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N27-1 (USV4) - S53-1 (USV4)

Always

Below 1 Ω

N27-2 (US4-) - S53-2 (US4-)

Always

Below 1 Ω

N27-3 (US4+) - S53-3 (US4+)

Always

Below 1 Ω

N27-4 (UGO4) - S53-4 (UGO4)

Always

Below 1 Ω

N27-5 (USG4) - S53-5 (USG4)

Always

Below 1 Ω

N19-4 (+B2) - S52-4 (+B2)

Always

Below 1 Ω

N19-3 (ACC2) - S52-3 (ACC2)

Always

Below 1 Ω

N19-8 (GND2) - S52-8 (GND2)

Always

Below 1 Ω

N28-1 (LVDS) - S54-1 (LVDS)

Always

Below 1 Ω

N27-1 (USV4) - Body ground

Always

10 kΩ or higher

N27-2 (US4-) - Body ground

Always

10 kΩ or higher

N27-3 (US4+) - Body ground

Always

10 kΩ or higher

N27-4 (UGO4) - Body ground

Always

10 kΩ or higher

N27-5 (USG4) - Body ground

Always

10 kΩ or higher

N19-4 (+B2) - Body ground

Always

10 kΩ or higher

N19-3 (ACC2) - Body ground

Always

10 kΩ or higher

N19-8 (GND2) - Body ground

Always

10 kΩ or higher

N28-1 (LVDS) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

CHECK NO. 1 NAVIGATION WIRE

(a) Replace the No. 1 navigation wire with a known good one (See page (b) Check that the malfunction disappears. ).

(b) Check that the malfunction disappears.

OK:

Malfunction disappears.

OK

END (NO. 1 NAVIGATION WIRE WAS DEFECTIVE)

NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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, ...

Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier
DESCRIPTION This circuit sends a signal to the stereo component amplifier assembly to mute noise. Because of that, the noise produced by changing the sound source ceases. If there is an open in th ...

Other materials:

Air Inlet Damper Position Sensor Circuit (B1432/32)
DESCRIPTION This sensor detects the position of the air inlet damper and sends the appropriate signals to the air conditioning amplifier assembly. The position sensor is built into the No. 1 air conditioning servo assembly (fresh/recirculation damper). DTC No. DTC Detecti ...

System Description
SYSTEM DESCRIPTION 1. FUNCTION DESCRIPTION (a) ABS (Anti-lock Brake System) (1) The ABS helps prevent the wheels from locking when the brakes are applied firmly or when braking on a slippery surface. (b) EBD (Electronic Brake force Distribution) (1) The EBD control utilizes ABS, and performs ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the engine immobiliser system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. ...

© 2011-2021 Copyright www.ttguide.net