Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001MH7Y
Model Year Start: 2020 Model: RAV4 Prod Date Range: [01/2020 - 08/2020]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Microphone Circuit; 2020 MY RAV4 RAV4 HV [01/2020 - 08/2020]

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

    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

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 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PRECAUTION

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 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: OPERATION CHECK

(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

NG

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 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: OPERATION CHECK

(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

GO TO STEP 5

OK

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

OK

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.

*A

Only for models with the vehicle identification number on the certification label ending with the character A.

*B

Except models with the vehicle identification number on the certification label ending with the character A.

*a

Front view of wire harness connector

(to Navigation ECU)

(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

  1. Turn the ignition switch to ON.
  2. 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.

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

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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

GO TO STEP 11

C

GO TO STEP 17

D

GO TO STEP 21

A

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

OK

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

OK

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

OK

9.

CHECK DCM (TELEMATICS TRANSCEIVER)

(a) Remove the DCM (telematics transceiver) with the connector(s) still connected.

Click here 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

*a

Component with harness connected

(DCM [Telematics Transceiver])

(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

REPLACE DCM (TELEMATICS TRANSCEIVER)

OK

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 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; LIGHTING (INT): PERSONAL LIGHT: REMOVAL

(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.

Item

Condition

Measurement terminal

P20-8 (MCO+) - P20-7 (MCO-)

Tool setting

50 mV/DIV., 500 ms/DIV.

Vehicle condition

  1. Turn the ignition switch to ON.
  2. 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.

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.

*a

Component with harness connected

(to Map Light Assembly)

OK

GO TO STEP 16

NG

GO TO STEP 20

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:

w/ Panoramic Moon Roof System

Tester Connection

Condition

Specified Condition

G2-25 (SNS2) - P14-4 (SNS2)

Always

Below 1 Ω

G2-25 (SNS2) - Body ground

Always

10 kΩ or higher

w/o Panoramic Moon Roof System

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

OK

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

OK

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:

w/ Panoramic Moon Roof System

Tester Connection

Condition

Specified Condition

G131-5 (MCVD) - P14-7 (MACC)

Always

Below 1 Ω

G131-6 (MCI+) - P14-6 (MCO+)

Always

Below 1 Ω

G131-7 (MCI-) - P14-5 (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

w/o Panoramic Moon Roof System

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

OK

14.

CHECK DCM (TELEMATICS TRANSCEIVER)

(a) Remove the DCM (telematics transceiver) with the connector(s) still connected.

Click here 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

*a

Component with harness connected

(DCM [Telematics Transceiver])

(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

REPLACE DCM (TELEMATICS TRANSCEIVER)

OK

15.

CHECK MAP LIGHT ASSEMBLY (OUTPUT TO DCM [TELEMATICS TRANSCEIVER])

  • *1: w/ Panoramic Moon Roof System
  • *2: w/o Panoramic Moon Roof System

(a) Check the output waveform.

(1) Remove the map light assembly with the connector(s) still connected.

Click here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; LIGHTING (INT): PERSONAL LIGHT: REMOVAL

(2) Connect an oscilloscope to terminals 6 (MCO+)*1 or 4 (MCO+)*2 and 5 (MCO-)*1 or 6 (MCO-)*2 of the P14 map light assembly connector.

(3) Check the signal waveform according to the condition(s) in the table below.

Item

Condition

Measurement terminal

P14-6 (MCO+) - P14-5 (MCO-)*1

P14-4 (MCO+) - P14-6 (MCO-)*2

Tool setting

50 mV/DIV., 500 ms/DIV.

Vehicle condition

  1. Turn the ignition switch to ON.
  2. 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.

HINT:

The oscilloscope waveform shown in the illustration is an example for reference only.

*A

w/ Panoramic Moon Roof System

*B

w/o Panoramic Moon Roof System

*a

Component with harness connected

(to Map Light Assembly)

OK:

The waveform is similar to that shown in the illustration.

NG

GO TO STEP 24

OK

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 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

(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.

Item

Condition

Measurement terminal

G131-16 (MCO+) - G131-32 (MCO-)

Tool setting

50 mV/DIV., 500 ms/DIV.

Vehicle condition

  1. Turn the ignition switch to ON.
  2. 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.

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.

*a

Component with harness connected

DCM (Telematics Transceiver)

OK

REPLACE RADIO AND DISPLAY ASSEMBLY

NG

REPLACE TELEPHONE TRANSCEIVER ASSEMBLY

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

OK

18.

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Remove the radio and display receiver assembly with the connector(s) still connected.

Click here 2019 - 2022 MY RAV4 RAV4 HV [11/2018 - 10/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

*a

Component with harness connected

(Radio and Display Receiver Assembly)

(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

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

OK

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 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; LIGHTING (INT): PERSONAL LIGHT: REMOVAL

(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.

Item

Condition

Measurement terminal

P20-8 (MCO+) - P20-7 (MCO-)

Tool setting

50 mV/DIV., 500 ms/DIV.

Vehicle condition

  1. Turn the ignition switch to ON.
  2. 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.

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.

*a

Front view of wire harness connector

(to Map Light Assembly)

OK

REPLACE RADIO AND DISPLAY ASSEMBLY

NG

20.

INSPECT MAP LIGHT ASSEMBLY

(a) Remove the map light assembly.

Click here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; LIGHTING (INT): PERSONAL LIGHT: REMOVAL

*a

Component without harness connected

(Map Light Assembly [Wire Harness Side])

*b

Component without harness connected

(Map Light Assembly [Telephone Microphone Assembly Side])

(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

REPLACE TELEPHONE MICROPHONE ASSEMBLY

NG

REPLACE MAP LIGHT ASSEMBLY

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:

w/ Panoramic Moon Roof System

Tester Connection

Condition

Specified Condition

G2-25 (SNS2) - P14-4 (SNS2)

Always

Below 1 Ω

G2-23 (MACC) - P14-7 (MACC)

Always

Below 1 Ω

G2-21 (MIN+) - P14-6 (MCO+)

Always

Below 1 Ω

G2-22 (MIN-) - P14-5 (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

w/o Panoramic Moon Roof System

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

OK

22.

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Remove the radio and display receiver assembly with the connector(s) still connected.

Click here 2019 - 2022 MY RAV4 RAV4 HV [11/2018 - 10/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

*a

Component with harness connected

(Radio and Display Receiver Assembly)

(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

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

OK

23.

CHECK MAP LIGHT ASSEMBLY (OUTPUT TO RADIO AND DISPLAY RECEIVER)

  • *1: w/ Panoramic Moon Roof System

    *2: w/o Panoramic Moon Roof System

(a) Check the output waveform.

(1) Remove the map light assembly with the connector(s) still connected.

Click here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; LIGHTING (INT): PERSONAL LIGHT: REMOVAL

(2) Connect an oscilloscope to terminals 6 (MCO+)*1 or 4 (MCO+)*2 and 5 (MCO-)*1 or 6 (MCO-)*2 of the P14 map light assembly connector.

(3) Check the signal waveform according to the condition(s) in the table below.

Item

Condition

Measurement terminal

P14-6 (MCO+) - P14-5 (MCO-)*1

P14-4 (MCO+) - P14-6 (MCO-)*2

Tool setting

50 mV/DIV., 500 ms/DIV.

Vehicle condition

  1. Turn the ignition switch to ON.
  2. 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.

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.

*A

w/ Panoramic Moon Roof System

*B

w/o Panoramic Moon Roof System

*a

Front view of wire harness connector

(to Map Light Assembly)

OK

REPLACE RADIO AND DISPLAY ASSEMBLY

NG

24.

INSPECT MAP LIGHT ASSEMBLY

(a) Remove the map light assembly.

Click here 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; LIGHTING (INT): PERSONAL LIGHT: REMOVAL

*A

w/ Panoramic Moon Roof System

*B

w/o Panoramic Moon Roof System

*a

Component without harness connected

(Map Light Assembly [Wire Harness Side])

*b

Component without harness connected

(Map Light Assembly [Telephone Microphone Assembly Side])

(b) Disconnect the telephone microphone assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

w/ Panoramic Moon Roof System

Tester Connection

Condition

Specified Condition

4 (SNS2) - C-1 (SNS2)

Always

Below 1 Ω

7 (MACC) - C-5 (MACC)

Always

Below 1 Ω

6 (MCO+) - C-3 (MIC+)

Always

Below 1 Ω

5 (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

w/o Panoramic Moon Roof System

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

REPLACE TELEPHONE MICROPHONE ASSEMBLY

NG

REPLACE MAP LIGHT ASSEMBLY