Navigation Voice Circuit
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
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.
(c) Measure the resistance according to the value(s) in the table below.
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 |
| OK | ![]() | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.
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