Toyota 4Runner: Navigation Voice Circuit

Toyota 4Runner Service Manual / Audio / Visual / Telematics / Navigation / Multi Info Display / Navigation System / Navigation Voice Circuit

DESCRIPTION

This circuit is used when the voice guidance in the navigation system is on or an incoming cellular phone voice in the "Bluetooth" hands-free system is heard.

Using this circuit, the navigation receiver assembly sends the signals to the stereo component amplifier assembly.

WIRING DIAGRAM

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)

(a) Disconnect the G5 navigation receiver assembly connector.

(b) Disconnect the N11 stereo component amplifier assembly connector.

Standard Resistance:

Tester connection	Condition	Specified condition
G5-2 (RL+) - N11-15 (II1+)	Always	Below 1 Ω
G5-6 (RL-) - N11-14 (II1-)	Always	Below 1 Ω
N11-18 (SLD1) - Body ground	Always	10 kΩ or higher
N11-14 (II1-) - Body ground	Always	10 kΩ or higher
N11-15 (II1+) - Body ground	Always	10 kΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Reverse Signal Circuit

DESCRIPTION The navigation receiver assembly receives a reverse signal from the park/neutral position switch assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: After replacing t ...

Microphone Circuit between Microphone and Navigation Receiver Assembly

DESCRIPTION The navigation receiver assembly and map light assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines. ...

Other materials about Toyota 4Runner:

Image from Camera for Rear View Monitor is Abnormal
DESCRIPTION The display signal from the rear television camera assembly transmits to the radio and display receiver assembly. WIRING DIAGRAM PROCEDURE 1. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR ...

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART NOTICE: Turn the ignition switch off before removing parts. HINT: If no abnormality is found when inspecting parts, inspect the stabilizer control ECU and ground points for poor contact. If a trouble code is ou ...