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Home >> Lexus >> 2008 >> SC 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 137 (Cruise Control System (Diagnostics - Introduction)) >> Cruise Control System >> Fail-Safe Chart >> Fail-Safe Chart
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Fail-Safe Chart

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

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 Re-operation 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 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 ignition switch off then on again
Cruise control is cancelled (The indicator light remains on) Under the following conditions, the stored vehicle speed is maintained.
  • Vehicle speed is lower than the low speed limit (approx. 40 km/h (25 mph)) while running with the cruise control on
  • VSC operates
Push cruise control main switch to + (ACCEL)/RES (RESUME)
Vehicle speed is lower than the stored speed by approx. 16 km/h (10 mph) or more Push cruise control main switch to - (COAST)/SET
Cruise control is cancelled (The indicator light is off) There is a problem with throttle position sensor and motor Turn cruise control main switch on again