Engine auto start control does not operate
Precautions: Precautions for Diagnosing Trouble · Precautions for Servicing ENG A-STOP System · Precautions for Replacing ENG A-STOP Control Module · Precautions for Control Systems · General safety (00)
NOTE:
•Perform ENG A-STOP system check referring to ENG A-STOP System Check before performing this ENG A-STOP System Symptom Diagnosis.
•ENG A-STOP control module monitors the battery condition through input signals from the battery voltage and electric load current sensor & battery temperature sensor, etc., and performs the ENG A-STOP control only when it judges that the battery is in a fully charged condition.
•In case the battery discharge is suspected (e.g. when the vehicle has not been used for a long time.), disconnect the negative (–) cable at the battery and recharge the battery.
When recharging the battery without disconnecting the negative (–) cable at the battery, it will be necessary to drive the for maximum 3 hours before the ENG A-STOP control module judges that the battery is fully charged, during which the ENG A-STOP system does not operate.
•ENG A-STOP control module monitors the battery condition through input signals from the battery voltage and electric load current sensor & battery temperature sensor, etc., and performs the ENG A-STOP control only when it judges that the battery is in a fully charged condition.
•In case the battery discharge is suspected (e.g. when the vehicle has not been used for a long time.), disconnect the negative (–) cable at the battery and recharge the battery.
When recharging the battery without disconnecting the negative (–) cable at the battery, it will be necessary to drive the for maximum 3 hours before the ENG A-STOP control module judges that the battery is fully charged, during which the ENG A-STOP system does not operate.
| Condition | Possible Cause | Action |
|---|---|---|
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Engine auto start control does not operate
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Lighting or blinking MIL
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Check DTC.
•M16A model:
 •K14C model: •D16AA model: |
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Faulty CPP switch (M/T model)
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Check CPP switch.
•CPP No.1 switch:
•CPP No.2 switch: |
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Faulty starting motor
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Faulty engine system
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Check engine.
•M16A model:
•K14C model: •D16AA model: |
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Faulty neutral position switch (M/T model)
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Faulty hood latch switch
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Faulty electric load current sensor & battery temperature sensor
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Faulty brake booster pressure sensor
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Faulty brake booster
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Faulty ECM
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Check ECM and its circuit.
•M16A model:
•K14C model: •D16AA model: |
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Faulty ESP® system
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Faulty HVAC control module (auto A/C model)
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Faulty ENG A-STOP control module
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