Limited I-Stop Function Operation Time: Notes
LIMITED I-STOP FUNCTION OPERATION TIME - SKYACTIV-G (US) TROUBLESHOOTING REFERENCE
| Troubleshooting item |
Limited i-stop function operation time |
| Description |
- Frequency of which i-stop function operates is low.
- Frequent occurrence of engine restarting other than for driving vehicle from stop.
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| Possible cause |
NOTE:
- To ensure electric vehicle system reliability, restart the engine regardless of the vehicle condition after 120 s have elapsed since the i-stop function operated.
- DTCs are stored in the following modules.
- PCM
- DC-DC converter (Mazda M Hybrid)
- Mazda M Hybrid battery
- Integrated starter generator (ISG)
- Dash-electrical supply unit
- Electronically controlled brake unit
- SAS control module
- TCM
- EPS control module
- Body control module (BCM)
Battery voltage low during i-stop function operation
- Insufficient battery recharge while engine is running
- Low recharge effect
- Integrated starter generator (ISG) malfunction (part, system, control malfunction)
- Large amount of vehicle power consumption
- High electrical load from aftermarket electrical accessories
- Mazda M Hybrid battery malfunction (remaining capacity is low, duct of floor under cover No. 1 (RH) is clogged, or Mazda M Hybrid battery is deteriorated)
False detection of engine starting conditions
- False detection of battery voltage
False recognition of driver performing engine start operation
- False detection of released brake pedal
- Brake fluid pressure sensor (built-into electronically controlled brake unit) malfunction
- False detection of steering wheel operation
- Steering angle sensor initialization malfunction
- EPS control module malfunction
- Steering angle sensor malfunction
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| System wiring diagram |
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| Connector diagram |
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