Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001MH81
Model Year Start: 2020 Model: RAV4 Prod Date Range: [01/2020 - 10/2022]
Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B157111,B157113; Indicator (Green) Circuit Short to Ground; 2020 - 2022 MY RAV4 RAV4 HV [01/2020 - 10/2022]

DTC

B157111

Indicator (Green) Circuit Short to Ground

DTC

B157113

Indicator (Green) Circuit Open

DESCRIPTION

This DTC is set when the DCM (telephone transceiver assembly) detects an open or short in the manual (SOS) switch green indicator circuit of the manual (SOS) switch. The manual (SOS) switch green indicator illuminates after the ignition switch is turned to ON.

If the safety connect system is not active, the manual (SOS) switch green indicator will turn off.

If the safety connect system is active, the manual (SOS) switch green indicator will blink while communicating with the call center.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B157111

Indicator (Green) Circuit Short to Ground

Manual (SOS) switch green indicator impedance (Ω) is lower than the malfunction threshold for 10 seconds or more when the ignition switch is ON
  • DCM (telephone transceiver assembly)
  • Map light sub-assembly (manual [SOS] switch)
  • Harness or connector

B157113

Indicator (Green) Circuit Open

Manual (SOS) switch green indicator impedance (Ω) is higher than the malfunction threshold for 10 seconds or more when the ignition switch is ON
  • DCM (telephone transceiver assembly)
  • Map light sub-assembly (manual [SOS] switch)
  • Harness or connector

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

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) (GREEN INDICATOR)

(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 and w/o Panoramic Moon Roof System

*C

for TMMC Made and w/ Panoramic Moon Roof System

*a

Component without harness connected

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

(b) Connect 2 dry-cell batteries (1.5 V each) in series.

(c) for TMC Made:

Connect a positive (+) lead from batteries to terminal 23 (IND2) and a negative (-) lead to terminal 14 (GND3) of the map light sub-assembly (manual [SOS] switch) connector.

for TMMC Made and w/o Panoramic Moon Roof System:

Connect a positive (+) lead from batteries to terminal 12 (IND2) and a negative (-) lead to terminal 10 (GND3) of the map light sub-assembly (manual [SOS] switch) connector.

for TMMC Made and w/ Panoramic Moon Roof System:

Connect a positive (+) lead from batteries to terminal 19 (IND2) and a negative (-) lead to terminal 12 (GND3) of the map light sub-assembly (manual [SOS] switch) connector.

(d) Check if the manual (SOS) switch green indicator comes on.

OK:

Manual (SOS) switch green indicator illuminates.

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

G131-22 (IND2) - P20-23 (IND2)

Always

Below 1 Ω

G131-22 (IND2) or P20-23 (IND2) - Body ground

Always

10 kΩ or higher

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 and w/o Panoramic Moon Roof System

Tester Connection

Condition

Specified Condition

G131-22 (IND2) - P14-12 (IND2)

Always

Below 1 Ω

G131-22 (IND2) or P14-12 (IND2) - Body ground

Always

10 kΩ or higher

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

Always

Below 1 Ω

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

Always

10 kΩ or higher

for TMMC Made and w/ Panoramic Moon Roof System

Tester Connection

Condition

Specified Condition

G131-22 (IND2) - P14-19 (IND2)

Always

Below 1 Ω

G131-22 (IND2) or P14-19 (IND2) - Body ground

Always

10 kΩ or higher

G131-3 (SIG-) - P14-12 (GND3)

Always

Below 1 Ω

G131-3 (SIG-) or P14-12 (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