Auto Idle Stop Conditions
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Each of the conditions below must be met before the engine goes into auto idle stop.
- The engine may not go into auto idle stop if DTCs in any of these systems are stored: PGM-FI, IMA, CVT, or climate control.
AUTO IDLE STOP CONDITIONS CHART
| Auto Idle Stop Transition Conditions | Judgment Method/HDS Judgment Threshold Value | HDS Value | System Menu | |||||
|---|---|---|---|---|---|---|---|---|
| PCM | General Conditions | More than 50 seconds after initial engine start. | - | - | ||||
| Engine coolant temperature and outside air temperature are within the range where auto idle stop is enabled. | ECT SENSOR 1 | PGM-FI | ||||||
| IAT SENSOR | PGM-FI | |||||||
| IMA battery state-of-charge is about 40% or more. | SOC | PGM-FI | ||||||
| Accelerator pedal is fully released. | APP SENSOR | PGM-FI | ||||||
| Brake pedal position switch is judged OK. | - | - | ||||||
| Idle stop switch is judged OK. | - | - | ||||||
| Brake pedal position switch is closed (brake pedal pressed). | BRAKE SWITCH | PGM-FI | ||||||
| Idle stop switch is opened (brake pedal pressed). | IDLE STOP SW | PGM-FI | ||||||
| Auto idle stop permission is received from the climate control unit. | AUTO IDLE STOP DOES NOT OCCUR (A/C) | PGM-FI | ||||||
| Brake booster vacuum is within the auto idle stop enable range. | BRAKE BOOSTER SENSOR (S)A+B | BRAKE/EVPS | ||||||
| Unique Conditions | Once auto idle stop is activated, the vehicle speed must exceed 7 mph (12 km/h) before auto idle stop is activated again. | VEHICLE SPEED | PGM-FI | |||||
| Excessive vehicle deceleration can prevent auto idle stop operation (more than a 10 mph (16 > km/h) drop within 40 milliseconds). | VEHICLE SPEED | PGM-FI | ||||||
| A rapid drop in engine speed can prevent auto idle stop operation (more than 200 rpm). | ENGINE SPEED | PGM-FI | ||||||
| A detected road grade of about 11 % or more prevents auto idle stop operation. | - | - | ||||||
| An abnormal vehicle speed input signal prevents auto idle stop (vehicle speed changes from 7.5 mph (10 km/h) or more to 0 mph (0 km/h) within 10 milli seconds). | - | - | ||||||
| An air leak detected by the PCM may prevent auto idle stop operation. | - | - | ||||||
| PCM | Motor/Battery PCM | IMA motor rotor position calibration is complete. | MOTOR ROTOR POSITION CALIBRATION STATE | IMA | ||||
| Motor control module power supply voltage is 9.2 V or more. | MCM POWER SOURCE VOLTAGE | IMA | ||||||
| Motor power inverter temperature is less than 203 °F (95 °C). | MPI TEMPERATURE | IMA | ||||||
| IMA battery state-of-charge (SOC) is within the allowable range for auto idle stop. | SOC | IMA | ||||||
| IMA BATTERY TEMPERATURE SENSOR 1 | IMA | |||||||
| IMA BATTERY TEMPERATURE SENSOR 2 | IMA | |||||||
| IMA BATTERY TEMPERATURE SENSOR 3 | IMA | |||||||
| CVT PCM | CVT start clutch learning is complete. | LEARN CONDITION | CVT | |||||
| CVT fluid temperature is warm (shown on the HDS using a representative temperature value of 5 or more. | TRANSMISSION WARMING-UP STATUS | CVT | ||||||
| Brake pedal position switch is closed (brake pedal pressed). | Brake Switch | CVT | ||||||
| Brake pedal position switch is judged OK. | AUTO IDLE STOP DOES NOT OCCUR (BRAKE) | PGM-FI | ||||||
| Shift lever is in D, S, or N. | A/T D Switch | CVT | ||||||
| A/T S Switch | CVT | |||||||
| A/T N Switch | CVT | |||||||
| Vehicle speed is below 6 mph (10 km/h). | Vehicle Speed | CVT | ||||||
| CVT pulley ratio is 2.100 or more. | Pulley Ratio | CVT | ||||||
| Accelerator pedal is fully released. | APP Sensor (%) | CVT | ||||||
| Creep aid system (CAS) is in weak creep mode. | - | - | ||||||
| Climate Control Unit | ECON ON or OFF | Defrost is not selected. | - | - | ||||
| Depending on outside air temperature, the engine coolant temperature is either above 113 °F (45 °C) or above 158 °F (70 °C). | Sensor 8 | (1) | ||||||
| Outside air temperature is above -4 °F (-20 °C). | Sensor 3 | (1) | ||||||
| In-vehicle humidity is below windshield fogging level. | Sensor A | (1) | ||||||
| During auto idle stop, the estimated time for the windshield to fog is at least 10 seconds. | - | - | ||||||
| ECON OFF | Temperature is not set to LO (max cool). | - | - | |||||
| Temperature is not set to HI (max hot). | - | - | ||||||
| When the A/C is on, auto idle stop operation depends on the evaporator outlet air temperature: Below 59 °F (15 °C): Auto idle stop is enabled. Above 86 °F (30 °C): Auto idle stop is disabled. 59-86 °F (15-30 °C): Auto idle stop varies, depending on the ambient conditions of the passenger compartment. | Sensor 5 | (1) | ||||||
| Heater is on, engine coolant temperature is above 158 °F (70 °C), and outside air temperature is above 28.4 °F (-2 °C). | Sensor 8 Sensor 3 |
(1) | ||||||
| Estimated time before the passenger compartment becomes too hot or too cold is at least 10 seconds. | - | - | ||||||
| Blower motor voltage is 7 V or less (Auto), or 8 V or less (Manual). | - | (2) | ||||||
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