Toyota 4Runner manuals

Toyota 4Runner: Fail-safe Chart

Toyota 4Runner Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Fail-safe Chart

FAIL-SAFE CHART

1. POWER WINDOW OPERATION IN FAIL-SAFE MODE

HINT:

If the pulse sensor built into a power window regulator motor malfunctions, the power window control system enters fail-safe mode.

(a) The power window control system prohibits the following power window operations when the pulse sensor for the jam protection function has problems and the window position or the learned value is abnormal.

Multiplex Network Master Switch Assembly

Power Window Operation

Condition

Ignition Switch ON

Ignition Switch Off

(Key-off Operation Permitted)

Ignition Switch Off

(Key-off Operation Prohibited)

Manual up (Driver side door window)

○

X

-

Manual down (Driver side door window)

○

X

-

Auto up (Driver side door window)

(hold switch in auto up position)

X

X

-

Auto up (Driver side door window)

X

X

-

Auto down (Driver side door window)

X

X

-

Manual up (Remote switch operation)

X

X

-

Manual down (Remote switch operation)

X

X

-

Auto up (Remote switch operation)

(hold switch in auto up position)

X

X

-

Auto up (Remote switch operation)

X

X

-

Auto down (Remote switch operation)

X

X

-

Key-linked open and close

-

X

X

Wireless transmitter-linked open and close

-

X

X

HINT:

  • ○: Operates without jam protection/catch protection
  • X: Operation prohibited
Power Window Regulator Switch Assembly (for Front Passenger, Rear LH and Rear RH Sides)

Power Window Operation

Condition

Ignition Switch ON

Ignition Switch Off

(Key-off Operation Permitted)

Ignition Switch Off

(Key-off Operation Prohibited)

Manual up

○

X

-

Manual down

○

X

-

Auto up

(hold switch in auto up position)

X

X

-

Auto up

X

X

-

Auto down

X

X

-

Key-linked open and close

-

X

X

Wireless transmitter-linked open and close

-

X

X

HINT:

  • ○: Operates without jam protection/catch protection
  • X: Operation prohibited
Back Door Power Window Regulator Switch Assembly

Back Door Power Window Operation

Condition

Ignition Switch ON

Ignition Switch Off

(Key-off Operation Permitted)

Ignition Switch Off

(Key-off Operation Prohibited)

Manual up

X

X

-

Manual down

○

X

-

Auto up

(hold switch in auto up position)

○*

X

-

Auto up

X

X

-

Auto down

X

X

-

HINT:

  • ○: Operates
  • X: Operation prohibited
  • *: Operates in manual mode without jam protection

(1) Power window switch LED control

HINT:

During normal operation (fail-safe is not operating), or during fail-safe mode when there is a pulse sensor malfunction or the window position or learned value is abnormal, the LED illuminates as shown in the illustration.

  1. For driver side:

  2. For front passenger side, rear LH and rear RH sides:

(2) Fail-safe deactivation condition

  • When the pulse sensor is normal, to deactivate fail-safe mode, pull up the power window switch to the auto up position and hold it for at least 1 second to fully close the window from the fully open position. As a result, the auto up/down function will return.

(b) Initialization failure

HINT:

During initialization of the power window regulator motor ECU, when the window position or initialization complete status cannot be properly read from the EEPROM, the power window control system prohibits the operations as follows:

Multiplex Network Master Switch Assembly

Power Window Operation

Condition

Ignition Switch ON

Ignition Switch Off

(Key-off Operation Permitted)

Ignition Switch Off

(Key-off Operation Prohibited)

Manual up (Driver side door window)

○

X

-

Manual down (Driver side door window)

○

X

-

Auto up (Driver side door window)

(hold switch in auto up position)

X

X

-

Auto up (Driver side door window)

X

X

-

Auto down (Driver side door window)

X

X

-

Manual up (Remote switch operation)

X

X

-

Manual down (Remote switch operation)

X

X

-

Manual up (Remote switch operation)

X

X

-

Manual down (Remote switch operation)

X

X

-

Auto up (Remote switch operation)

(hold switch in auto up position)

X

X

-

Auto up (Remote switch operation)

X

X

-

Auto down (Remote switch operation)

X

X

-

Key-linked open and close

-

X

X

Wireless transmitter-linked open and close

-

X

X

HINT:

  • ○: Operates without jam protection/catch protection
  • X: Operation prohibited
Power Window Regulator Switch Assembly (for Front Passenger, Rear LH and Rear RH Sides)

Power Window Operation

Condition

Ignition Switch ON

Ignition Switch Off

(Key-off Operation Permitted)

Ignition Switch Off

(Key-off Operation Prohibited)

Manual up

○

X

-

Manual down

○

X

-

Auto up

(hold switch in auto up position)

X

X

-

Auto up

X

X

-

Auto down

X

X

-

Key-linked open and close

-

X

X

Wireless transmitter-linked open and close

-

X

X

HINT:

  • ○: Operates without jam protection/catch protection
  • X: Operation prohibited
Back Door Power Window Regulator Switch Assembly

Back Door Power Window Operation

Condition

Ignition Switch ON

Ignition Switch Off

(Key-off Operation Permitted)

Ignition Switch Off

(Key-off Operation Prohibited)

Manual up

X

X

-

Manual down

○

X

-

Auto up

(hold switch in auto up position)

○*

X

-

Auto up

X

X

-

Auto down

X

X

-

HINT:

  • ○: Operates
  • X: Operation prohibited
  • *: Operates in manual mode without jam protection

(1) Power window switch LED control

HINT:

During initialization of the power window regulator motor ECU, when the window position or initialization complete status cannot be properly read from the EEPROM during fail-safe mode, the LED illuminates as shown in the illustration.

  1. For driver side:

  2. For front passenger side, rear LH and rear RH sides:

(c) LIN communication failure

HINT:

If the LIN communication line malfunctions (communication stop), the power window control system prohibits the operations as follows:

Multiplex Network Master Switch Assembly

Power Window Operation

Condition

Ignition Switch ON

Manual up

○*

Manual down

○

Auto up (hold switch in auto up position)

-

Auto up

-

Auto down

-

HINT:

  • ○: Operates
  • X: Operation prohibited
  • *: Jam protection/catch protection can operate.
  • Remote up/down function does not operate.
Power Window Regulator Switch Assembly (for Front Passenger, Rear LH and Rear RH Sides)

Power Window Operation

Condition

Ignition Switch ON

Manual up

○*

Manual down

○

Auto up (hold switch in auto up position)

○*

Auto up

○*

Auto down

○

HINT:

  • ○: Operates
  • X: Operation prohibited
  • *: Jam protection/catch protection can operate.
Back Door Power Window Regulator Switch Assembly

Back Power Window Operation

Condition

Ignition Switch ON

Manual up

○*

Manual down

○

Auto up

(hold switch in auto up position)

○*

Auto up

○*

Auto down

○

HINT:

  • ○: Operates
  • X: Operation prohibited
  • *: Jam protection can operate.

(d) LIN communication failure and pulse sensor failure

HINT:

If the LIN communication line malfunctions (communication stop) and the pulse sensor for the jam protection function has problems, the power window control system prohibits the operations as follows:

Multiplex Network Master Switch Assembly

Power Window Operation

Condition

Always

Manual up

X

Manual down

X

Auto up (hold switch in auto up position)

X

Auto up

X

Auto down

X

HINT:

  • ○: Operates
  • X: Operation prohibited
  • Driver door window: When the jam protection function does not operate due to a LIN communication failure, the manual up and auto up functions will not operate.
  • Remote switch operation is not operative during a LIN communication failure.
Power Window Regulator Switch Assembly (for Front Passenger, Rear LH and Rear RH Sides)

Power Window Operation

Condition

Always

Manual up

X

Manual down

X

Auto up (hold switch in auto up position)

X

Auto up

X

Auto down

X

HINT:

  • ○: Operates
  • X: Operation prohibited
Back Door Power Window Regulator Switch Assembly

Back Power Window Operation

Condition

Always

Manual up

X

Manual down

X

Auto up (hold switch in auto up position)

X

Auto up

X

Auto down

X

HINT:

  • ○: Operates
  • X: Operation prohibited

(e) LIN communication failure and abnormal window position learned value or initialization failure

HINT:

If the LIN communication line malfunctions (communication stop) and the window position or the learned value is abnormal, the power window control system prohibits the operations as follows:

Multiplex Network Master Switch Assembly

Power Window Operation

Condition

Always

Manual up

○*

Manual down

○

Auto up (hold switch in auto up position)

-

Auto up

-

Auto down

-

HINT:

  • ○: Operates
  • *: Jam protection/catch protection can operate and window reverses upon reaching the fully closed position.
  • Remote switch operation is not operative during a LIN communication failure.
Power Window Regulator Switch Assembly (for Front Passenger, Rear LH and Rear RH Sides)

Power Window Operation

Condition

Always

Manual up

○*

Manual down

○

Auto up (hold switch in auto up position)

○*

Auto up

X

Auto down

X

HINT:

  • ○: Operates
  • X: Operation prohibited
  • *: Jam protection/catch protection can operate and window reverses upon reaching the fully closed position.
Back Door Power Window Regulator Switch Assembly

Power Window Operation

Condition

Always

Manual up

○*

Manual down

○

Auto up (hold switch in auto up position)

○*

Auto up

X

Auto down

X

HINT:

  • ○: Operates
  • X: Operation prohibited
  • *: Jam protection can operate and window reverses upon reaching the fully closed position.
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