Toyota Camry (XV70): Fuel Lid Opener does not Operate

DESCRIPTION

When the fuel lid opener switch is pushed for 0.8 second, the main body ECU (multiplex network ECU) turns on the FUEL OPN relay, and the fuel lid lock with motor assembly opens the fuel lid.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

• Inspect the fuses for circuits related to this system before performing the following procedure.
• Before replacing the main body ECU (multiplex network body ECU), refer to Registration.

  Click here

PROCEDURE

1.	PERFORM ACTIVE TEST USING TECHSTREAM (FUEL LID OPENER)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > Main Body > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Fuel Lid Opener	Fuel lid lock with motor assembly	OFF/ON	-

Body Electrical > Main Body > Active Test

Tester Display
Fuel Lid Opener

OK:

The fuel lid lock with motor assembly operates normally.

NG

GO TO STEP 5

OK

2.	READ VALUE USING TECHSTREAM (FUEL LID OPENER SWITCH)

(a) Enter the following menus: Body Electrical / Main Body / Data List.

(b) Read the Data List according to the display on the Techstream.

Body Electrical > Main Body > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Fuel Lid Opener Switch	Fuel lid opener switch status	OFF or ON	OFF: Fuel lid opener switch not pushed ON: Fuel lid opener switch pushed	-

OK:

The Techstream display changes correctly in response to the operation of the fuel lid opener switch.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

3.	INSPECT FUEL LID OPENER SWITCH

(a) Remove the fuel lid opener switch.

Click here

(b) Inspect the fuel lid opener switch.

Click here

NG

Click here Click here REPLACE FUEL LID OPENER SWITCH

OK

4.	CHECK HARNESS AND CONNECTOR (FUEL LID OPENER SWITCH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)

(a) Disconnect the K52 main body ECU (multiplex network body ECU) connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
K38-5 (IG) - K52-15 (FUSW)	Always	Below 1 Ω
K38-2 (E) - Body ground	Always	Below 1 Ω
K38-5 (IG) or K52-15 (FUSW) - Body ground	Always	10 kΩ or higher

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.	INSPECT FUEL LID LOCK WITH MOTOR ASSEMBLY

(a) Remove the fuel lid lock with motor assembly.

Click here

(b) Inspect the fuel lid lock with motor assembly (motor operation).

Click here

NG

REPLACE FUEL LID LOCK WITH MOTOR ASSEMBLY

OK

6.	CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BATTERY)

(a) Disconnect the 3C instrument panel junction block assembly connector.

(b) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Condition Specified Condition 3C-7 - Body ground Always 11 to 14 V 3C-30 - Body ground Always 11 to 14 V

*a Front view of wire harness connector (to Instrument Panel Junction Block Assembly)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

7.	CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

(a) Disconnect the 3A instrument panel junction block assembly connector.

(b) Disconnect the K51 main body ECU (multiplex network body ECU) connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3A-19 - K51-24 (FUEL)	Always	Below 1 Ω
3A-19 or K51-24 (FUEL) - Body ground	Always	10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

8.	CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - FUEL LID LOCK WITH MOTOR ASSEMBLY)

(a) Disconnect the 3D instrument panel junction block assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3D-28 - W4-1 (B)	Always	Below 1 Ω
3D-28 or W4-1 (B) - Body ground	Always	10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

9.	REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

(a) Replace the instrument panel junction block assembly.

Click here

NEXT

10.	CHECK FUEL LID OPEN OPERATION

(a) Check that the fuel lid can be opened.

Click here

OK:

The fuel lid can be opened.

OK

END (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WAS DEFECTIVE)

NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

READ NEXT: