Home Engine/Hybrid System Cruise Control CRUISE CONTROL SYSTEM
Last Modified: 11-27-2007 1.6 U
Service Category: Engine/Hybrid System Section: Cruise Control
Model Year: 2008 Model: LX570 Doc ID: RM000000ST102OX
Title: CRUISE CONTROL: CRUISE CONTROL SYSTEM: FAIL-SAFE CHART (2008 LX570)

FAIL-SAFE CHART

HINT:

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

Vehicle Condition

Auto Cancel Condition

Fail-safe Deactivation Condition

CRUISE main indicator light blinks

  • There is an open or short in the stop light switch circuit
  • There is a problem with the vehicle speed signal

Turn the cruise control main switch on again

CRUISE main indicator light blinks

  • There is a problem with the input circuit of the stop light switch circuit
  • There is a problem with the cancel circuit
  • Turn the cruise control main switch on again
  • Turn the engine switch off then on again

CRUISE main indicator light remains on

(Cruise control is canceled)

Under the following conditions, the stored vehicle speed is maintained:

  • The vehicle speed is less than the low speed limit (approx. 40 km/h (25 mph)) while running with the cruise control on
  • The VSC system is operated

Push the cruise control main switch to +RES

  • The vehicle speed is less than the stored speed by approx. 16 km/h (10 mph) or more

Push the cruise control main switch to -SET

CRUISE main indicator light goes off

There is a problem with the throttle position sensor and the motor

Turn the cruise control main switch on again