CRUISE CONTROL SYSTEM FAIL-SAFE CHART

Tech Tips

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

Vehicle Condition Auto Cancel Condition Re-operation Condition
Cruise control indicator light goes off

  • Problem with input circuit of stop light switch circuit

  • Problem with cancel circuit

  • Problem with electronically controlled brake system

  • Communication stop between brake booster with master cylinder (skid control ECU) and power management control ECU

 Power switch off

  • Open or short in stop light switch circuit

  • Problem with vehicle speed signal

  • Problem with hybrid vehicle control system

 Cruise control switch on again
Cruise control indicator light on

  • Vehicle speed is lower than low speed limit (approximately. 40 km/h (25 mph)) while running with cruise control on

  • Electronically controlled brake system operates

 Push cruise control switch to +/RES

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

 Push cruise control switch to -/SET