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Check Conditions
- 3 seconds elapse after the electric motor switch is turned ON, or 3 seconds elapse
after the main battery starts to be charged.
- None of the following diagnosis codes occur at the same time.
- P1AA8: Local CAN (for main battery) signal time-out
- U1082: Local CAN (for main battery) bus off
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Judgement Criterion
- The module temperature is more than 60°C.
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- Drive the main battery cooling fan for 10 minutes after judging malfunctions.
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- The main battery cooling is insufficient with the failed
air conditioner control system.
- The module (battery cell, CMU and module temperature sensor) in the main battery
is failed.
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Q.
Is diagnosis code of compressor & heater controller set?
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Check the compressor & heater controller. (Refer to GROUP 55 - Troubleshooting - Diagnosis
Code Chart <Compressor & heater controller> ).
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- Check the data list reference table corresponding to
the diagnosis code (Refer to ).
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OK: At ambient temperature (atmospheric temperature) or equivalent (when the vehicle
driving and the charge are not performed for a long time)
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Q.
Is the check result normal?
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunctions ).
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Replace the main battery.
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