Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier: Procedure
- CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY
- Measure the resistance according to the value(s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard Resistance
Tester Connection Switch Condition Specified Condition N11-1 (MUTE) - Body ground Ignition switch ACC, Audio system playing → Changing source Higher than 3.5 V → Below 1 V TEXT IN ILLUSTRATION*a Component with harness connected
(Stereo Component Amplifier Assembly)
NG → See step 2
OK → See step 3
- Measure the resistance according to the value(s) in the table below.
- CHECK HARNESS OR CONNECTOR (NAVIGATION RECEIVER - STEREO COMPONENT AMPLIFIER)
- Disconnect the G21 navigation receiver assembly connector.
- Disconnect the N11 stereo component amplifier assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition G21-7 (MUTE) - N11-1 (MUTE) Always Below 1 Ω G21-7 (MUTE) - Body ground Always 10 kΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 4
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE
- REPLACE NAVIGATION RECEIVER ASSEMBLY. Refer to REMOVAL