Toyota Tacoma Quiz
Audio / Video

Data Signal Circuit between Radio Receiver and Extension Module

In this manual: Audio / Video
Introduction — 15Maintenance — 8Audio / Video — 94Garage Door Opener — 7Navigation / Multi Info Display — 84Park Assist / Monitoring — 86Brake — 50Brake Control / Dynamic Control Systems — 165Parking Brake — 52gr-fks Charging — 252gr-fks Cooling — 212gr-fks Emission Control — 132gr-fks Engine Control — 322gr-fks Engine Mechanical — 332gr-fks Exhaust — 92gr-fks Fuel — 422gr-fks Ignition — 62gr-fks Intake — 72gr-fks Lubrication — 152gr-fks Starting — 38Ac60e Automatic Transmission / Transaxle — 146Axle — 19Clutch — 20Cruise Control — 168Differential — 50Drive Shaft — 6Propeller Shaft — 23Rc62f Manual Transmission / Transaxle — 34Suspension — 22Tire And Wheel — 39Vf2cm Transfer — 44Can Communication — 45Multiplex Communication — 20Power Distribution — 5Power Steering — 29Steering Column — 29Air Conditioning — 108Door Lock — 88Engine Hood / Door — 16Engine Immobiliser — 47Exterior — 55Horn — 5Interior — 18Interior Panel — 8Lighting — 93Meter / Gauge / Display — 31Mirror — 22Other System — 24Pre-collision — 40Seat — 52Seat Belt — 40Sliding Roof — 26Supplemental Restraint Systems — 139Theft Deterrent — 20Window / Glass — 53Wiper / Washer — 24
~1min read
DESCRIPTION

The stereo component tuner assembly sends the image data signal to the radio and display receiver assembly via this circuit.

WIRING DIAGRAM PROCEDURE PROCEDURE

  1. CHECK NO. 1 NAVIGATION WIRE

(a) Disconnect the R33 radio and display receiver assembly connector.

(b) Disconnect the S53 stereo component tuner assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

S53-1 (USV4) - R33-1 (USV4)

Always

Below 1 Ω

S53-2 (US4-) - R33-2 (US4-)

Always

Below 1 Ω

S53-3 (US4+) - R33-3 (US4+)

Always

Below 1 Ω

S53-4 (UGO4) - R33-4 (UGO4)

Always

Below 1 Ω

S53-5 (USG4) - R33-5 (USG4)

Always

Below 1 Ω

S53-1 (USV4) - Body ground

Always

10 kΩ or higher

S53-2 (US4-) - Body ground

Always

10 kΩ or higher

S53-3 (US4+) - Body ground

Always

10 kΩ or higher

S53-4 (UGO4) - Body ground

Always

10 kΩ or higher

S53-5 (USG4) - Body ground

Always

10 kΩ or higher
Text in Illustration

*a

Front view of No. 1 navigation wire connector

(to Radio and Display Receiver Assembly)

*b

Front view of No. 1 navigation wire connector

(to Stereo Component Tuner Assembly)
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
NG

REPLACE NO. 1 NAVIGATION WIRE

Test yourself

A quick Toyota Tacoma quiz: every answer comes with an explanation and a link to the manual page.