Toyota Tundra Service Manual: Fail-safe Chart

FAIL-SAFE CHART

HINT:

If any of the following conditions are detected while the cruise control system is controlling vehicle speed, the system clears the vehicle speed stored in the ECM and cancels control of vehicle speed by the cruise control system.

Auto Cancel Condition

Warning

Fail-safe Deactivation Condition

Multi-information Display

Master Warning Light

Cruise Control Indicator

Warning Buzzer

Open or short in stop light switch circuit

Cruise Control Malfunction Visit Your Dealer

Illuminates

Does not illuminate

Sounds

Cruise control system is turned off and back on again using the cruise control main switch (ON-OFF button).

  • Problem with stop light switch input circuit
  • Problem with cruise control main switch cancel circuit
  • Malfunction is detected in the vehicle stability control system
  • Communication stop between skid control ECU (brake actuator assembly) and ECM

Cruise Control Malfunction Visit Your Dealer

Illuminates

Does not illuminate

Sounds

Turn ignition switch off then on again.

If the following condition occurs, the ECM cancels control of vehicle speed by the cruise control system (Stored vehicle speed is maintained):

  • Vehicle speed is less than approximately 40 km/h (25 mph) while driving with the cruise control system controlling vehicle speed

-

Does not illuminate

Illuminates

-

Cruise control main switch is pushed to +RES

Malfunction is detected in SFI system

-

Illuminates

Does not illuminate

-

Cruise control system is turned off and back on again using the cruise control main switch (ON-OFF button).

Vehicle speed is less than stored vehicle speed by approximately 16 km/h (10 mph) or more

-

Does not illuminate

Illuminates

-

Cruise control main switch is pushed to -SET

  • Vehicle stability control system operates while driving with cruise control system controlling vehicle speed
  • TRAC system operates for a certain period of time while driving with cruise control system controlling vehicle speed.
  • TRAC is turned off
  • VSC is turned off
  • Switching between 2WD and 4WD*

-

Does not illuminate

Illuminates

-

Cruise control main switch is pushed to +RES

*: for 4WD

    Dtc Check / Clear

    Freeze Frame Data

    See More:

    Toyota Tundra Service Manual > Automatic Transmission System: Output Speed Sensor Circuit No Signal (P0722)
    DESCRIPTION The speed sensor SP2 detects the rotation speed of the transmission output shaft and sends signals to the ECM. The ECM determines the vehicle speed based on these signals. An AC voltage is generated in the speed sensor SP2 coil as the parking gear mounted on the rear planetary gear assem ...

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