| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001KGAG |
| Model Year Start: 2020 | Model: RAV4 | Prod Date Range: [10/2019 - 10/2022] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: Mute Signal Circuit between Radio Receiver and Telematics Transceiver; 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022] | ||
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Mute Signal Circuit between Radio Receiver and Telematics Transceiver |
DESCRIPTION
The DCM (telematics transceiver) sends a mute signal to the radio and display receiver assembly.
The radio and display receiver assembly controls the volume according to the mute signal from the DCM (telematics transceiver).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.
- When replacing the DCM (telematics transceiver), make sure to replace it with a new one.
-
Before replacing the DCM (telematics transceiver), refer to Registration.
for HV Model: Click here
![2020 - 2021 MY RAV4 HV [10/2019 - 12/2021]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
for Gasoline Model: Click here
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.
Click here
PROCEDURE
|
1. |
INSPECT DCM (TELEMATICS TRANSCEIVER) |
|
(a) Remove the DCM (telematics transceiver) with the connector(s) still connected. Click here
|
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(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
G131-14 (MUTE) - Body ground |
Ignition switch ON Audio system playing → Emergency call mode |
2.0 V or higher → Below 1 V |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
|
2. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - DCM [TELEMATICS TRANSCEIVER]) |
(a) Disconnect the G2 radio and display receiver assembly connector.
(b) Disconnect the G131 DCM (telematics transceiver) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G2-3 (TMUT) - G131-14 (MUTE) |
Always |
Below 1 Ω |
|
G2-3 (TMUT) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY |
(a) Disconnect the DCM (telematics transceiver) connector.
|
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
| OK |
|
| NG |
|
|
|