Toyota Camry owners & service manuals

Toyota Camry (XV70): Emergency Call Switch Illumination Circuit

Toyota Camry Repair Manual XV70 (2018-2024) / Audio, Visual, Telematics / Cellular Communication / Safety Connect System / 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

  • 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

Engine 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

*a

Component without harness connected

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

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

OK:

Measurement Condition

Condition

Specified Condition

Battery positive (+) → V14-13 (RRID)

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

Engine 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

*a

Component without harness connected

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

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

OK:

Measurement Condition

Condition

Specified Condition

Battery positive (+) → V18-9 (RRID)

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

NOTICE:

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

PERFORM DCM ACTIVATION

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