Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Remote Engine Starter does not Operate

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Telematics / Telematics System(for Gasoline Model) / Remote Engine Starter does not Operate

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the DCM (telematics transceiver), refer to Registration.

Click here

PROCEDURE

1.

CHECK SMART KEY SYSTEM (for Start Function)

(a) Check that the engine can be started by pressing the engine switch.

Result

Proceed to

Engine can be started.

A

Engine cannot be started.

B
B

GO TO SMART KEY SYSTEM (for Start System)

A

2.

REGISTRATION

HINT:

If registration is not performed after replacing any of the following parts, the remote engine start and stop will not be available.
  • Certification ECU (smart key ECU assembly)
  • DCM (telematics transceiver)

(a) Perform remote engine start and stop registration.

Click here

(b) Check if the problem symptom recurs.

Result

Proceed to

System does not return to normal.

A

System returns to normal.

B
B

END
A

3.

CHECK DTC

(a) If DTC B2285 is output, perform troubleshooting for DTC B2285 first.

Result

Proceed to

DTC B2285 is not output.

A

DTC B2285 is output.

B
B

GO TO DTC B2285

A

4.

CHECK DCM (TELEMATICS TRANSCEIVER)

(a) Disconnect the G9 DCM (telematics transceiver) connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G9-29 (SLPD) - Body ground

Steering locked

11 to 14 V

Steering unlocked

Below 1.5 V

HINT:

The steering locks when any door is opened with the shift lever in P and the engine switch off. The steering unlocks when the engine switch is turned on (ACC).

OK

REPLACE DCM (TELEMATICS TRANSCEIVER)

NG

5.

CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

(a) Disconnect the G9 DCM (telematics transceiver) connector.

(b) Disconnect the G40 certification ECU (smart key ECU assembly) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G9-29 (SLPD) - G40-14 (SLP)

Always

Below 1 Ω

G9-29 (SLPD) or G40-14 (SLP) - Body ground

Always

10 kΩ or higher
OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
    Problem Symptoms Table

    Remote Service Malfunction

    See More:

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Meter / Gauge System(for Gasoline Model): Dtc Check / Clear
    DTC CHECK / CLEAR CHECK FOR DTC (METER / GAUGE SYSTEM) (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Combination Meter / Trouble Codes. Body Electrical > Combination Meter > Trouble Codes ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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