Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001K4ZQ
Model Year Start: 2020 Model: RAV4 Prod Date Range: [10/2019 - 01/2020]
Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: Emergency Call Switch Illumination Circuit; 2020 MY RAV4 RAV4 HV [10/2019 - 01/2020]

Emergency Call Switch Illumination Circuit

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Safety Connect System.

    Click here 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: PRECAUTION

  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (MAP LIGHT SUB-ASSEMBLY POWER SOURCE)

(a) Disconnect the G131 DCM (telephone transceiver assembly) connector.

(b) Disconnect the P20*1 or P14*2 map light sub-assembly (manual [SOS] switch) connector.

  • *1: for TMC Made
  • *2: for TMMC Made

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

Standard Voltage:

for TMC Made

Tester Connection

Switch Condition

Specified Condition

P20-24 (RRID) - Body Ground

Ignition switch ON

11 to 14 V

for TMMC Made

Tester Connection

Switch Condition

Specified Condition

P14-2 (RRID) - Body Ground

Ignition switch ON

11 to 14 V

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

Standard Resistance:

for TMC Made

Tester Connection

Condition

Specified Condition

G131-3 (SIG-) - P20-14 (GND3)

Always

Below 1 Ω

G131-3 (SIG-) or P20-14 (GND3) - Body ground

Always

10 kΩ or higher

for TMMC Made

Tester Connection

Condition

Specified Condition

G131-3 (SIG-) - P14-10 (GND3)

Always

Below 1 Ω

G131-3 (SIG-) or P14-10 (GND3) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

2.

INSPECT MAP LIGHT SUB-ASSEMBLY (MANUAL [SOS] SWITCH)

(a) Remove the map light sub-assembly (manual [SOS] switch).

Click here 2019 - 2025 MY RAV4 RAV4 HV [11/2018 -        ]; LIGHTING (INT): PERSONAL LIGHT: REMOVAL

*A

for TMC Made

*B

for TMMC Made

*a

Component without harness connected

(Map Light Sub-assembly (Manual [SOS] Switch))

(b) Apply battery voltage to the connector.

for TMC Made

Measurement Condition

Condition

Specified Condition

Battery positive (+) → 24 (RRID)

Battery negative (-) → 14 (GND3)

Always

Manual (SOS) switch illumination comes on

for TMMC Made

Measurement Condition

Condition

Specified Condition

Battery positive (+) → 2 (RRID)

Battery negative (-) → 10 (GND3)

Always

Manual (SOS) switch illumination comes on

(c) Check if the manual (SOS) switch illumination comes on.

OK:

The manual (SOS) switch illumination comes on.

NG

REPLACE MAP LIGHT SUB-ASSEMBLY (MANUAL (SOS) SWITCH)

OK

3.

REPLACE DCM (TELEPHONE TRANSCEIVER ASSEMBLY)

(a) Replace the DCM (telephone transceiver assembly) with a new one.

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

NOTICE:

  • The ignition switch must be off.
  • Do not exchange the DCM (telephone transceiver assembly) with one from another vehicle.
NEXT

PERFORM DCM ACTIVATION