Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2003V70 2.4 L5-2.4L VIN 61 B5244SREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSECM CODES (ENGINE CONTROL MODULE)ECM-8010CHARGED TOO HIGH
2003 Volvo V70 2.4 L5-2.4L VIN 61 B5244S
Charged Too High
2003 Volvo V70 2.4 L5-2.4L VIN 61 B5244SSECTION Charged Too High
Charge too high
Checking charge voltage
Hint: When a battery charger or starter unit is connected to the battery it is important that the correct voltage is set.
Charging at too high a voltage can cause diagnostic trouble codes (DTCs) to be stored.
- Start the engine.
- Connect a voltmeter between battery terminals.
Battery voltage should be less than 16 V.
Is the battery voltage OK?
Yes - Intermittent fault
No - Checking charging system
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Checking charging system
Check charging system for too high charge voltage , see Service Manual Section 3 (31-33) power supply system 200/700.
Continue - Fault-tracing information
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Intermittent fault
The control module has earlier registered too high voltage. This may have been caused by a battery charger with faulty voltage being connected to the battery or an intermittent fault in the charging regulator.
Continue - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).
Do you want to view the information again?
Yes - Attempt New Test
No - Fault Found
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Attempt New Test - Checking charge voltage
FAULT FOUND - DONE
DONE - DONE
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RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.