Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001K4ZL
Model Year Start: 2020 Model: RAV4 Prod Date Range: [10/2019 - 01/2020]
Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B15C511,B15C513; Emergency Call Switch Circuit Short to Ground; 2020 MY RAV4 RAV4 HV [10/2019 - 01/2020]

DTC

B15C511

Emergency Call Switch Circuit Short to Ground

DTC

B15C513

Emergency Call Switch Circuit Open

DESCRIPTION

This DTC is set when the DCM (telephone transceiver assembly) detects an open or short circuit in the manual (SOS) switch.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15C511

Emergency Call Switch Circuit Short to Ground

Manual (SOS) switch impedance (Ω) is lower than the malfunction threshold for 10 seconds or more when the ignition switch is ON

  • Map light sub-assembly (manual [SOS] switch)
  • Harness or connector
  • DCM (telephone transceiver assembly)

B15C513

Emergency Call Switch Circuit Open

Manual (SOS) switch impedance (Ω) is higher than the malfunction threshold for 10 seconds or more when the ignition switch is ON

  • Map light sub-assembly (manual [SOS] switch)
  • Harness or connector
  • DCM (telephone transceiver assembly)

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 Telematics System.

Click here TELEMATICS > TELEMATICS SYSTEM > PRECAUTION

PROCEDURE

1.

CHECK DTC

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON and wait for 10 seconds or more.

(d) Turn the Techstream on.

(e) Clear the DTCs.

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

Body Electrical > Telematics > Clear DTCs

(f) Check for DTCs and check that no DTCs are output.

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

Body Electrical > Telematics > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

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

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

Click here 2019 - 2024 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) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

for TMC Made

Tester Connection

Condition

Specified Condition

22 (SIG1) - 14 (GND3)

Manual (SOS) switch not operated

410 to 414 Ω

22 (SIG1) - 14 (GND3)

Manual (SOS) switch operated

81 to 83 Ω

for TMMC Made

Tester Connection

Condition

Specified Condition

9 (SIG1) - 10 (GND3)

Manual (SOS) switch not operated

410 to 414 Ω

9 (SIG1) - 10 (GND3)

Manual (SOS) switch operated

81 to 83 Ω

NG

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

OK

3.

CHECK HARNESS AND CONNECTOR (DCM [TELEPHONE TRANSCEIVER ASSEMBLY] - MAP LIGHT SUB-ASSEMBLY (MANUAL [SOS] SWITCH))

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

Standard Resistance:

for TMC Made

Tester Connection

Condition

Specified Condition

G131-21 (SIG1) - P20-22 (SIG1)

Always

Below 1 Ω

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

Always

Below 1 Ω

G131-21 (SIG1) or P20-22 (SIG1) - Body ground

Always

10 kΩ or higher

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

Always

10 kΩ or higher

for TMMC Made

Tester Connection

Condition

Specified Condition

G131-21 (SIG1) - P14-9 (SIG1)

Always

Below 1 Ω

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

Always

Below 1 Ω

G131-21 (SIG1) or P14-9 (SIG1) - Body ground

Always

10 kΩ or higher

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

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

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