WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.
Click here
PROCEDURE
1. | CHECK VOICE GUIDANCE SETTING |
(a) Check that the voice guidance settings are not off.
OK:
Voice guidance settings are not off.
NG | CHANGE THE VOICE GUIDANCE SETTINGS TO ON |
|
2. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the J149 radio receiver assembly connector.
(b) Disconnect the J153 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J149-22 (SI+) - J153-6 (VOI+) | Always | Below 1 Ω |
J149-23 (SI-) - J153-7 (VOI-) | Always | Below 1 Ω |
J149-22 (SI+) or J153-6 (VOI+) - Body ground | Always | 10 kΩ or higher |
J149-23 (SI-) or J153-7 (VOI-) - Body ground | Always | 10 kΩ or higher |
J153-8 (SLD1) - Body ground | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. | CHECK AUDIO FUNCTION |
(a) Check that sound can be heard from a front speaker.
OK:
Sound can be heard.
OK | REPLACE NAVIGATION ECU |
NG | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
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