Toyota Tundra Service Manual: Operation Check

OPERATION CHECK

1. CHECK KEY REMINDER WARNING SYSTEM

(a) Check that the key reminder warning buzzer sounds.

(1) With the driver side door closed, insert the key into the ignition key cylinder and then turn the key to the LOCK or ACC position.

(2) Check that the buzzer sounds intermittently if the driver side door is opened.

(b) Check that the key reminder warning buzzer stops.

(1) Check that the buzzer stops sounding when any of the following operations is performed while the buzzer is sounding:

  • Close the driver side door (front door courtesy switch is off).
  • Turn the ignition switch to the ON position.
  • Remove the key from the ignition key cylinder.
    Key Reminder Buzzer does not Sound

    Parts Location

    See More:

    Toyota Tundra Service Manual > Can Communication System: Check Bus 1 Line for Short to GND
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 23 (CA1H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 8 (CA1L) of the central gateway ECU (network gateway ECU) and termina ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

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