- Turn the ignition switch to ON.
- Sound is input to the map light assembly when the user is closer than 125 mm (4.92 in.) from the map light assembly sound holes.
| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001KJD9 |
| Model Year Start: 2020 | Model: RAV4 | Prod Date Range: [10/2019 - 01/2020] |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Microphone Circuit; 2020 MY RAV4 RAV4 HV [10/2019 - 01/2020] | ||
|
Microphone Circuit |
DESCRIPTION
- The radio and display receiver assembly, telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
-
Using this circuit, the DCM (telematics transceiver) sends power to telephone microphone assembly, and the telephone microphone assembly sends microphone signals to the radio and display receiver assembly and navigation ECU via the DCM (telematics transceiver).*
- *: w/ Manual (SOS) Switch
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. (w/ Manual [SOS] Switch)
-
Before replacing the DCM (telematics transceiver), refer to Registration. (w/ Manual [SOS] Switch)
for Gasoline Model: Click here
![2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
for HV 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 Navigation System.
Click here
PROCEDURE
|
1. |
CHECK MICROPHONE AND VOICE RECOGNITION (INPUT TO NAVIGATION ECU) |
|
(a) Enter the "Microphone Check" screen. Refer to Check Microphone (Input to navigation ECU) in Operation Check. Click here
|
|
(b) When voice is input into the microphone, check that the microphone input level meter changes according to the input voice.
OK:
Check result is normal.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
|
2. |
CHECK MICROPHONE AND VOICE RECOGNITION (INPUT TO RADIO AND DISPLAY RECEIVER ASSEMBLY) |
|
(a) Enter the "Microphone Check" screen. Refer to Check Microphone (Input to radio and display receiver assembly) in Operation Check. Click here
|
|
(b) When voice is input into the microphone, check that the microphone input level meter changes according to the input voice.
OK:
Check result is normal.
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU) |
-
*1: Only for models with the vehicle identification number on the certification label ending with the character A.
*2: Except models with the vehicle identification number on the certification label ending with the character A.
(a) Disconnect the G1 radio and display receiver assembly connector.
(b) Disconnect the G15*1 or H7*2 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G1-25 (MCO+) - G15-13 (MIC+)*1 |
Always |
Below 1 Ω |
|
G1-25 (MCO+) - H7-13 (MIC+)*2 |
Always |
Below 1 Ω |
|
G1-26 (MCO-) - G15-14 (MIC-)*1 |
Always |
Below 1 Ω |
|
G1-26 (MCO-) - H7-14 (MIC-)*2 |
Always |
Below 1 Ω |
|
G1-25 (MCO+) - Body ground |
Always |
10 kΩ or higher |
|
G1-26 (MCO-) - Body ground |
Always |
10 kΩ or higher |
|
G1-24 (SGND) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY (OUTPUT TO NAVIGATION ECU) |
-
*1: Only for models with the vehicle identification number on the certification label ending with the character A.
*2: Except models with the vehicle identification number on the certification label ending with the character A.
|
(a) Disconnect the navigation ECU connector. |
|
(b) Check the signal waveform according to the condition(s) in the table below.
|
Item |
Condition |
|---|---|
|
Measurement terminal |
G15-13 (MIC+) - G15-14 (MIC-)*1 H7-13 (MIC+) - H7-14 (MIC-)*2 |
|
Tool setting |
50 mV/DIV., 500 ms/DIV. |
|
Vehicle condition |
|
OK:
The waveform is similar to that shown in the illustration.
HINT:
The oscilloscope waveform shown in the illustration is an example for reference only.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
|
|
5. |
CHECK VEHICLE TYPE |
(a) Check the vehicle type.
|
Result |
Proceed to |
|---|---|
|
for TMC Made and w/ Manual (SOS) Switch |
A |
|
for TMMC Made and w/ Manual (SOS) Switch |
B |
|
for TMC Made and w/o Manual (SOS) Switch |
C |
|
for TMMC Made and w/o Manual (SOS) Switch |
D |
| B |
|
| C |
|
| D |
|
|
|
6. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY) |
(a) Disconnect the G2 radio and display receiver assembly connector.
(b) Disconnect the P20 map light assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G2-25 (SNS2) - P20-6 (SNS2) |
Always |
Below 1 Ω |
|
G2-25 (SNS2) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
7. |
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 |
|---|---|---|
|
G2-21 (MIN+) - G131-16 (MCO+) |
Always |
Below 1 Ω |
|
G2-22 (MIN-) - G131-32 (MCO-) |
Always |
Below 1 Ω |
|
G2-21 (MIN+) or G131-16 (MCO+) - Body ground |
Always |
10 kΩ or higher |
|
G2-22 (MIN-) or G131-32 (MCO-) - Body ground |
Always |
10 kΩ or higher |
|
G2-24 (SGND) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
8. |
CHECK HARNESS AND CONNECTOR (DCM [TELEMATICS TRANSCEIVER] - MAP LIGHT ASSEMBLY) |
(a) Disconnect the G131 DCM (telematics transceiver) connector.
(b) Disconnect the P20 map light assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G131-5 (MCVD) - P20-9 (MACC) |
Always |
Below 1 Ω |
|
G131-6 (MCI+) - P20-8 (MCO+) |
Always |
Below 1 Ω |
|
G131-7 (MCI-) - P20-7 (MCO-) |
Always |
Below 1 Ω |
|
G131-5 (MCVD) - Body ground |
Always |
10 kΩ or higher |
|
G131-6 (MCI+) - Body ground |
Always |
10 kΩ or higher |
|
G131-7 (MCI-) - Body ground |
Always |
10 kΩ or higher |
|
G131-23 (SGND) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
9. |
CHECK DCM (TELEMATICS TRANSCEIVER) |
|
(a) Remove the DCM (telematics transceiver) with the connector(s) still connected. Click here
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
G131-5 (MCVD) - Body ground |
Ignition switch ON |
4 to 6 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G131-7 (MCI-) - Body ground |
Always |
Below 1 Ω |
|
G131-23 (SGND) - Body ground |
Always |
Below 1 Ω |
| NG |
|
|
|
10. |
CHECK MAP LIGHT ASSEMBLY (OUTPUT TO DCM [TELEMATICS TRANSCEIVER]) |
|
(a) Check the output waveform. (1) Remove the map light assembly with the connector(s) still connected. Click here
(2) Connect an oscilloscope to terminals 8 (MCO+) and 7 (MCO-) of the P20 map light assembly connector. (3) Check the signal waveform according to the condition(s) in the table below.
HINT: The oscilloscope waveform shown in the illustration is an example for reference only. OK: The waveform is similar to that shown in the illustration. |
|
| OK |
|
| NG |
|
|
11. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY) |
(a) Disconnect the G2 radio and display receiver assembly connector.
(b) Disconnect the P14 map light assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G2-25 (SNS2) - P14-5 (SNS2) |
Always |
Below 1 Ω |
|
G2-25 (SNS2) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
12. |
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 |
|---|---|---|
|
G2-21 (MIN+) - G131-16 (MCO+) |
Always |
Below 1 Ω |
|
G2-22 (MIN-) - G131-32 (MCO-) |
Always |
Below 1 Ω |
|
G2-21 (MIN+) or G131-16 (MCO+) - Body ground |
Always |
10 kΩ or higher |
|
G2-22 (MIN-) or G131-32 (MCO-) - Body ground |
Always |
10 kΩ or higher |
|
G2-24 (SGND) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
13. |
CHECK HARNESS AND CONNECTOR (DCM [TELEMATICS TRANSCEIVER] - MAP LIGHT ASSEMBLY) |
(a) Disconnect the G131 DCM (telematics transceiver) connector.
(b) Disconnect the P14 map light assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G131-5 (MCVD) - P14-3 (MACC) |
Always |
Below 1 Ω |
|
G131-6 (MCI+) - P14-4 (MCO+) |
Always |
Below 1 Ω |
|
G131-7 (MCI-) - P14-6 (MCO-) |
Always |
Below 1 Ω |
|
G131-5 (MCVD) - Body ground |
Always |
10 kΩ or higher |
|
G131-6 (MCI+) - Body ground |
Always |
10 kΩ or higher |
|
G131-7 (MCI-) - Body ground |
Always |
10 kΩ or higher |
|
G131-23 (SGND) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
14. |
CHECK DCM (TELEMATICS TRANSCEIVER) |
|
(a) Remove the DCM (telematics transceiver) with the connector(s) still connected. Click here
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
G131-5 (MCVD) - Body ground |
Ignition switch ON |
4 to 6 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G131-7 (MCI-) - Body ground |
Always |
Below 1 Ω |
|
G131-23 (SGND) - Body ground |
Always |
Below 1 Ω |
| NG |
|
|
|
15. |
CHECK MAP LIGHT ASSEMBLY (OUTPUT TO DCM [TELEMATICS TRANSCEIVER]) |
|
(a) Check the output waveform. (1) Remove the map light assembly with the connector(s) still connected. Click here
(2) Connect an oscilloscope to terminals 4 (MCO+) and 6 (MCO-) of the P14 map light assembly connector. (3) Check the signal waveform according to the condition(s) in the table below.
HINT: The oscilloscope waveform shown in the illustration is an example for reference only. |
|
OK:
The waveform is similar to that shown in the illustration.
| NG |
|
|
|
16. |
CHECK DCM (TELEMATICS TRANSCEIVER) (OUTPUT TO RADIO AND DISPLAY RECEIVER ASSEMBLY) |
|
(a) Check the output waveform. (1) Remove the DCM (telematics transceiver) with the connector(s) still connected. Click here
(2) Connect an oscilloscope to terminals 16 (MCO+) and 32 (MCO-) of the G131 DCM (telematics transceiver) connector. (3) Check the signal waveform according to the condition(s) in the table below.
OK: The waveform is similar to that shown in the illustration. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. |
|
| OK |
|
| NG |
|
|
17. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY) |
(a) Disconnect the G2 radio and display receiver assembly connector.
(b) Disconnect the P20 map light assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G2-25 (SNS2) - P20-6 (SNS2) |
Always |
Below 1 Ω |
|
G2-23 (MACC) - P20-9 (MACC) |
Always |
Below 1 Ω |
|
G2-21 (MIN+) - P20-8 (MCO+) |
Always |
Below 1 Ω |
|
G2-22 (MIN-) - P20-7 (MCO-) |
Always |
Below 1 Ω |
|
G2-25 (SNS2) - Body ground |
Always |
10 kΩ or higher |
|
G2-23 (MACC) - Body ground |
Always |
10 kΩ or higher |
|
G2-21 (MIN+) - Body ground |
Always |
10 kΩ or higher |
|
G2-22 (MIN-) - Body ground |
Always |
10 kΩ or higher |
|
G2-24 (SGND) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
18. |
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
(a) Remove the radio and display receiver assembly with the connector(s) still connected. Click here
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
G2-23 (MACC) - Body ground |
Ignition switch ON |
4 to 6 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G2-24 (SGND) - Body ground |
Always |
Below 1 Ω |
|
G2-22 (MIN-) - Body ground |
Always |
Below 1 Ω |
| NG |
|
|
|
19. |
CHECK MAP LIGHT ASSEMBLY (OUTPUT TO DCM [TELEMATICS TRANSCEIVER]) |
|
(a) Check the output waveform. (1) Remove the map light assembly with the connector(s) still connected. Click here
(2) Connect an oscilloscope to terminals 8 (MCO+) and 7 (MCO-) of the P20 map light assembly connector. (3) Check the signal waveform according to the condition(s) in the table below.
HINT: The oscilloscope waveform shown in the illustration is an example for reference only. OK: The waveform is similar to that shown in the illustration. |
|
| OK |
|
|
|
20. |
INSPECT MAP LIGHT ASSEMBLY |
|
(a) Remove the map light assembly. Click here
|
|
(b) Disconnect the telephone microphone assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
6 (SNS2) - C-1 (SNS2) |
Always |
Below 1 Ω |
|
9 (MACC) - C-5 (MACC) |
Always |
Below 1 Ω |
|
8 (MCO+) - C-3 (MIC+) |
Always |
Below 1 Ω |
|
7 (MCO-) - C-2 (MIC-) |
Always |
Below 1 Ω |
|
C-1 (SNS2) - C-2 (MIC-) |
Always |
10 kΩ or higher |
|
C-1 (SNS2) - C-3 (MIC+) |
Always |
10 kΩ or higher |
|
C-1 (SNS2) - C-5 (MACC) |
Always |
10 kΩ or higher |
|
C-2 (MIC-) - C-3 (MIC+) |
Always |
10 kΩ or higher |
|
C-2 (MIC-) - C-5 (MACC) |
Always |
10 kΩ or higher |
|
C-3 (MIC+) - C-5 (MACC) |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
|
21. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY) |
(a) Disconnect the G2 radio and display receiver assembly connector.
(b) Disconnect the P14 map light assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G2-25 (SNS2) - P14-5 (SNS2) |
Always |
Below 1 Ω |
|
G2-23 (MACC) - P14-3 (MACC) |
Always |
Below 1 Ω |
|
G2-21 (MIN+) - P14-4 (MCO+) |
Always |
Below 1 Ω |
|
G2-22 (MIN-) - P14-6 (MCO-) |
Always |
Below 1 Ω |
|
G2-25 (SNS2) - Body ground |
Always |
10 kΩ or higher |
|
G2-23 (MACC) - Body ground |
Always |
10 kΩ or higher |
|
G2-21 (MIN+) - Body ground |
Always |
10 kΩ or higher |
|
G2-22 (MIN-) - Body ground |
Always |
10 kΩ or higher |
|
G2-24 (SGND) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
22. |
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
(a) Remove the radio and display receiver assembly with the connector(s) still connected. Click here
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
G2-23 (MACC) - Body ground |
Ignition switch ON |
4 to 6 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G2-24 (SGND) - Body ground |
Always |
Below 1 Ω |
|
G2-22 (MIN-) - Body ground |
Always |
Below 1 Ω |
| NG |
|
|
|
23. |
CHECK MAP LIGHT ASSEMBLY (OUTPUT TO DCM [TELEMATICS TRANSCEIVER]) |
|
(a) Check the output waveform. (1) Remove the map light assembly with the connector(s) still connected. Click here
(2) Connect an oscilloscope to terminals 4 (MCO+) and 6 (MCO-) of the P14 map light assembly connector. (3) Check the signal waveform according to the condition(s) in the table below.
HINT: The oscilloscope waveform shown in the illustration is an example for reference only. |
|
OK:
The waveform is similar to that shown in the illustration.
| OK |
|
|
|
24. |
INSPECT MAP LIGHT ASSEMBLY |
|
(a) Remove the map light assembly. Click here
|
|
(b) Disconnect the telephone microphone assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
5 (SNS2) - C-1 (SNS2) |
Always |
Below 1 Ω |
|
3 (MACC) - C-5 (MACC) |
Always |
Below 1 Ω |
|
4 (MCO+) - C-3 (MIC+) |
Always |
Below 1 Ω |
|
6 (MCO-) - C-2 (MIC-) |
Always |
Below 1 Ω |
|
C-1 (SNS2) - C-2 (MIC-) |
Always |
10 kΩ or higher |
|
C-1 (SNS2) - C-3 (MIC+) |
Always |
10 kΩ or higher |
|
C-1 (SNS2) - C-5 (MACC) |
Always |
10 kΩ or higher |
|
C-2 (MIC-) - C-3 (MIC+) |
Always |
10 kΩ or higher |
|
C-2 (MIC-) - C-5 (MACC) |
Always |
10 kΩ or higher |
|
C-3 (MIC+) - C-5 (MACC) |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
|
|