Toyota Avalon (XX50): Fuel Lid Opener System(for Hv Model)

Data List / Active Test

DATA LIST / ACTIVE TEST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

DATA LIST

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Data List.

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

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

ACTIVE TEST

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Active Test.

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

Fuel Lid Opener does not Operate

DESCRIPTION

When the fuel lid opener switch is pushed, a fuel lid opener switch signal is sent to the ECM. The ECM turns on the FUEL OPN relay and EFI-MAIN relay, and the fuel lid lock with motor assembly opens the fuel lid. When the fuel lid is open, a fuel lid courtesy switch signal is output from the fuel lid lock with motor assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Check for DTCs.

OK:

SFI system DTCs are not output.

NG

GO TO SFI SYSTEM

OK

(a) Enter the following menus: Powertrain / Engine / Active Test.

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

OK:

The fuel lid lock with motor assembly operates normally.

NG

GO TO STEP 9

OK

(a) Enter the following menus: Powertrain / Engine / Data List.

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

OK:

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

NG

GO TO STEP 7

OK

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

OK:

The Techstream display changes correctly in response to the operation of the fuel lid courtesy switch (fuel lid lock with motor assembly).

OK

REPLACE ECM

NG

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

Click here

(b) Inspect the fuel lid lock with motor assembly. (Fuel lid courtesy switch)

Click here

NG

REPLACE FUEL LID LOCK WITH MOTOR ASSEMBLY

OK

(a) Disconnect the A19 ECM connector.

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

Standard Resistance:

OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

(a) Remove the fuel lid opener switch.

Click here

(b) Inspect the fuel lid opener switch.

Click here

NG

REPLACE FUEL LID OPENER SWITCH

OK

(a) Disconnect the A19 ECM connector.

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

Standard Resistance:

OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

(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

(a) Disconnect the 4F instrument panel junction block assembly connector.

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

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

Standard Voltage:

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

(a) Disconnect the A19 ECM connector.

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

Standard Resistance:

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

(a) Disconnect the 4H instrument panel junction block assembly connector.

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

Standard Resistance:

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

(a) Connect the A19 ECM connector.

(b) Connect the 4F and 4H instrument panel junction block assembly connectors.

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

Standard Voltage:

A

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

B

REPLACE ECM

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

• Use the following procedure to troubleshoot the fuel lid opener system.
• *: Use the Techstream.

PROCEDURE

NEXT

HINT:

• In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
• Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
• The following 5 items are important points for problem analysis:

  What	Vehicle model, system name
  When	Date, time, occurrence frequency
  Where	Road conditions
  Under what conditions?	Driving conditions, weather conditions
  How did it happen?	Problem symptoms

NEXT

(a) Measure the auxiliary battery voltage with the power switch off.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

(b) Check the fuses and relays.

(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

NEXT

(a) Refer to Problem Symptoms Table.

Click here

B

GO TO STEP 6

A

(a) Data List / Active Test

Click here

(b) Operation Check

Click here

(c) Inspection

NEXT

NEXT

NEXT

END

Parts Location

PARTS LOCATION

ILLUSTRATION

Precaution

PRECAUTION

PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

NOTICE:

When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the cable is reconnected.

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

• Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
• Inspect the fuses and relays related to this system before inspecting the suspected areas below.

System Diagram

SYSTEM DIAGRAM