Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM100000001LCKI
Model Year Start: 2020 Model: Camry HV Prod Date Range: [09/2019 -           ]
Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: Emergency Call Switch Illumination Circuit; 2020 - 2024 MY Camry HV [09/2019 -        ]

Emergency Call Switch Illumination Circuit

WIRING DIAGRAM

w/ Sliding Roof
w/o Sliding Roof

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 MY Camry HV [09/2019 - 10/2020]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: PRECAUTION 2021 - 2024 MY Camry HV [10/2020 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: PRECAUTION

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

PROCEDURE

1.

CONFIRM MODEL

(a) Choose the model to be inspected.

Result

Proceed to

w/ Sliding Roof

A

w/o Sliding Roof

B

B

GO TO STEP 4

A

2.

CHECK HARNESS AND CONNECTOR (ROOF CONSOLE BOX SUB-ASSEMBLY (MANUAL (SOS) SWITCH) POWER SOURCE)

(a) Disconnect the K140 DCM (telematics transceiver) connector.

(b) Disconnect the V14 roof console box sub-assembly (manual (SOS) switch) connector.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

V14-13 (RRID) - Body Ground

Power switch on (IG)

11 to 14 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K140-3 (SIG-) - V14-16 (GND3)

Always

Below 1 Ω

K140-3 (SIG-) or V14-16 (GND3) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (MANUAL (SOS) SWITCH)

(a) Remove the roof console box sub-assembly (manual (SOS) switch).

Click here 2018 - 2024 MY Camry HV [07/2017 -        ]; LIGHTING (INT): PERSONAL LIGHT: REMOVAL

*a

Component without harness connected

(Roof Console Box Sub-assembly (Manual (SOS) Switch))

(b) Apply auxiliary battery voltage to the connector and check that the roof console box assembly comes on.

OK:

Measurement Condition

Condition

Specified Condition

Auxiliary battery positive (+) → V14-13 (RRID)

Auxiliary battery negative (-) → V14-16 (GND3)

Always

Manual (SOS) switch illumination cones on

OK

GO TO STEP 6

NG

REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY (MANUAL (SOS) SWITCH)

4.

CHECK HARNESS AND CONNECTOR (ROOF CONSOLE BOX SUB-ASSEMBLY (MANUAL (SOS) SWITCH) POWER SOURCE)

(a) Disconnect the K140 DCM (telematics transceiver) connector.

(b) Disconnect the V18 roof console box sub-assembly (manual (SOS) switch) connector.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

V18-9 (RRID) - Body Ground

Power switch on (IG)

11 to 14 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K140-3 (SIG-) - V18-12 (GND3)

Always

Below 1 Ω

K140-3 (SIG-) or V18-12 (GND3) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.

INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (MANUAL (SOS) SWITCH)

(a) Remove the roof console box sub-assembly (manual (SOS) switch).

Click here 2018 - 2024 MY Camry HV [07/2017 -        ]; LIGHTING (INT): PERSONAL LIGHT: REMOVAL

*a

Component without harness connected

(Roof Console Box Sub-assembly (Manual (SOS) Switch))

(b) Apply auxiliary battery voltage to the connector and check that the roof console box assembly comes on.

OK:

Measurement Condition

Condition

Specified Condition

Auxiliary battery positive (+) → V18-9 (RRID)

Auxiliary battery negative (-) → V18-13 (GND3)

Always

Manual (SOS) switch illumination cones on

NG

REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY (MANUAL (SOS) SWITCH)

OK

6.

REPLACE DCM (TELEMATICS TRANSCEIVER)

(a) Replace the DCM (telematics transceiver) with a new one.

Click here 2020 MY Camry HV [09/2019 - 10/2020]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

NOTICE:

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

PERFORM DCM ACTIVATION