AUDIO AND VISUAL SYSTEM(for Radio Receiver Type) Mute Signal Circuit between Radio Receiver and Telematics Transceiver
| DTC Code | DTC Name |
|---|---|
| Mute Signal Circuit between Radio Receiver and Telematics Transceiver |
DESCRIPTION
The telematics transceiver sends a mute signal to the radio receiver assembly.
The radio receiver assembly controls the volume according to the mute signal from the telematics transceiver.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
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.
PROCEDURE
INSPECT TELEMATICS TRANSCEIVER
-
*a
Component with harness connected
(Telematics Transceiver)
Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection
Condition
Specified Condition
M38-17 (MUTE) - Body ground
Ignition switch ACC
Audio system playing
→ Emergency call mode
3.5 V or higher
→ Below 1 V
Result
Proceed to
OK
NG
-
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - TELEMATICS TRANSCEIVER)
Disconnect the G46 radio receiver assembly connector.
Disconnect the M38 telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
G46-8 (TMUT) - M38-17 (MUTE)
Always
Below 1 Ω
G46-8 (TMUT) or M38-17 (MUTE) - Body ground
Always
10 kΩ or higher
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK RADIO RECEIVER ASSEMBLY
Reconnect the G46 radio receiver assembly connector.
-
*a
Front view of wire harness connector
(to Telematics Transceiver)
Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection
Switch Condition
Specified Condition
M38-17 (MUTE) - Body ground
Ignition switch ACC
3.5 V or higher
Result
Proceed to
OK
NG