Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001EH0A
Model Year Start: 2019 Model: RAV4 Prod Date Range: [11/2018 - 10/2019]
Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B1571; Manual (SOS) Switch Green Indicator Malfunction; 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]

DTC

B1571

Manual (SOS) Switch Green Indicator Malfunction

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

B1571

Manual (SOS) Switch Green Indicator Malfunction

Current for manual (SOS) switch green indicator reaches malfunction criteria for 10 seconds when ignition switch is ON.
  • Map light sub-assembly
  • Harness or connector
  • DCM (Telephone Transceiver Assembly)

WIRING DIAGRAM

CAUTION / NOTICE / HINT

HINT:

Before performing this diagnostic procedure, make sure to perform Health Check and confirm that the DCM/VIN registration information is correct.

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: HEALTH CHECK

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.

(d) Turn the Techstream on.

(e) Clear the DTCs.

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DTC CHECK / CLEAR

Body Electrical > Telematics > Clear DTCs

(f) Recheck for DTCs.

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DTC CHECK / CLEAR

Body Electrical > Telematics > Trouble Codes

Result

Proceed to

DTC B1570, B1571 and B15C5 are output

A

DTC B1571 is output

(DTC B1570 and B15C5 are not output)

B
B

GO TO STEP 5

A

2.

INSPECT MAP LIGHT SUB-ASSEMBLY (GREEN INDICATOR)

(a) Remove the map light sub-assembly.

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)

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

(c) for TMC Made:

Connect the positive (+) lead to terminal 19 (IND2) and the negative (-) lead to terminal 12 (GND3) of the map light sub-assembly connector.

for TMMC Made:

Connect the positive (+) lead to terminal 12 (IND2) and the negative (-) lead to terminal 10 (GND3) of the map light sub-assembly connector.

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

OK:

Green indicator comes on.

NG

REPLACE MAP LIGHT SUB-ASSEMBLY

OK

3.

CHECK HARNESS AND CONNECTOR (DCM (TELEPHONE TRANSCEIVER ASSEMBLY) - MAP LIGHT SUB-ASSEMBLY)

(a) Disconnect the G9 DCM (Telephone Transceiver Assembly) connector.

(b) Disconnect the P14 map light sub-assembly connector.

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

Standard Resistance:

for TMC Made:

Tester Connection

Condition

Specified Condition

G9-26 (SIG-) - P14-12 (GND3)

Always

Below 1 Ω

G9-26 (SIG-) or P14-12 (GND3) - Body ground

Always

10 kΩ or higher

G9-12 (IND2) - P14-19 (IND2)

Always

Below 1 Ω

G9-12 (IND2) or P14-19 (IND2) - Body ground

Always

10 kΩ or higher

for TMMC Made:

Tester Connection

Condition

Specified Condition

G9-26 (SIG-) - P14-10 (GND3)

Always

Below 1 Ω

G9-26 (SIG-) or P14-10 (GND3) - Body ground

Always

10 kΩ or higher

G9-12 (IND2) - P14-12 (IND2)

Always

Below 1 Ω

G9-12 (IND2) or P14-12 (IND2) - 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).

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; 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

5.

CHECK MAP LIGHT SUB-ASSEMBLY (MANUAL (SOS) SWITCH GREEN INDICATOR CONDITION)

(a) Confirm the green indicator status after the ignition switch is turned to ON.

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: SYSTEM DESCRIPTION

Result

Proceed to

Green indicator remains off

A

Green indicator remains on

B
B

GO TO STEP 10

A

6.

CHECK MAP LIGHT SUB-ASSEMBLY (GREEN INDICATOR INPUT VOLTAGE)

(a) Remove the map light sub-assembly but do not disconnect the connectors.

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 with harness connected

(Map Light Sub-assembly)

(b) for TMC Made:

Connect the positive lead of a voltmeter to terminal P14-19 (IND2), and the negative lead to terminal P14-12 (GND3).

for TMMC Made:

Connect the positive lead of a voltmeter to terminal P14-12 (IND2), and the negative lead to terminal P14-10 (GND3).

(c) Measure the voltage.

Standard:

1.0 to 8.5 V for 2 seconds after the ignition switch is turned to ON and red indicator has turned off.

0 V when the ignition switch is off.

OK

REPLACE MAP LIGHT SUB-ASSEMBLY

NG

7.

CHECK DCM (TELEPHONE TRANSCEIVER ASSEMBLY) (GREEN INDICATOR OUTPUT VOLTAGE)

(a) Remove the DCM (Telephone Transceiver Assembly) but do not disconnect the connectors.

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

*a

Component with harness connected

(DCM (Telephone Transceiver Assembly))

(b) Connect the positive lead of a voltmeter to terminal G9-12 (IND2), and the negative lead to body ground.

(c) Measure the voltage.

Standard:

1.0 to 8.5 V for 2 seconds after the ignition switch is turned to ON and red indicator has turned off.

0 V when the ignition switch is off.

OK

REPAIR OR REPLACE HARNESS OR CONNECTOR
NG

8.

CHECK HARNESS AND CONNECTOR (DCM (TELEPHONE TRANSCEIVER ASSEMBLY) - BODY GROUND)

(a) Remove the DCM (Telephone Transceiver Assembly) but do not disconnect the connectors.

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

*a

Component with harness connected

(DCM (Telephone Transceiver Assembly))

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G9-12 (IND2) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

9.

REPLACE DCM (TELEPHONE TRANSCEIVER ASSEMBLY)

(a) Replace the DCM (Telephone Transceiver Assembly).

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; 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

10.

REPLACE DCM (TELEPHONE TRANSCEIVER ASSEMBLY)

(a) Replace the DCM (Telephone Transceiver Assembly).

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; 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