VOLVO
IGM-P218185 - Cooling System Performance. Bus Signal / Message Failures. Signal above allowable range
System
Ukjent system / Merkespesifikk
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Hva betyr feilkoden?
The high voltage generator control module (IGM) receives cooling system information from the engine control module (ECM) over the CAN bus. The code is stored when the cooling system signal is too high. The fault is only checked once the test has started at ignition on.
Mulige årsaker
- Damaged coolant pump
- Damaged coolant temperature sensor
- Software fault in the engine control module (ECM)
- Software fault in the IGM
Hva du kan gjøre
- 1Read out and clear the code, start the car and see whether it returns
- 2If you have diagnostic equipment: check in live data whether the coolant temperature jumps while the engine is running
- 3Have a workshop check the coolant pump and the coolant temperature sensor
- 4Have a workshop check whether new software is available for the engine control module and the IGM and install it if needed
- 5The high voltage system may only be handled by a workshop; do not work on it yourself
Symptomer du kan merke5
- Warning symbol and text message in the display
- Warning about power supply problems from the alternator and charge regulator
- Charging of the high voltage battery while driving is absent, reduced or not working correctly
- High voltage battery is discharged or charges poorly
- HYBRID drive mode: the combustion engine is active all the time or too often
Hva feilen kan påvirke1
- The high voltage battery cannot be charged by the combustion engine
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