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 MANUALSVOLVO2004V70 L5-2.5L TURBO VIN 59 B5254T2REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSECM CODES (ENGINE CONTROL MODULE)ECM-1300FLOW TOO HIGH - PERMANENT FAULT
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2
Flow Too High - Permanent Fault
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2SECTION Flow Too High - Permanent Fault
Flow too high. Permanent fault
Checking cables
Check the cable between engine control module (ECM) #A22 (#A22) and mass air flow (MAF) sensor #5 for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the ground lead between #A58 (#A58) and mass air flow (MAF) sensor #3 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Remedy as necessary
Other information:
- Connecting the breakout box/accessing the control module, see Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box.
- To access/replace the Mass Air Flow (MAF) sensor, see the relevant service procedure.
- With the ignition on and the mass air flow (MAF) sensor connector connected the voltage at mass air flow (MAF) sensor #2 should be approximately Ubatt, mass air flow (MAF) sensor #3 should be ground and mass air flow (MAF) sensor #5 should be approximately 1 V.
- For information about signals, see Signal specification Signal Description / Specification.
Continue - Verification
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Verification
Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off
- Reinstall the connectors, components etc.
- Ignition on
- Check that the air flow is correct. The value must be approximately 0 kg/h with the engine switched off
- Start the engine. Read off the air flow. The value may vary by between 12-20 kg/h at idle speed, depending on the engine load and temperature. The value may be in excess of 20 kg/h if the engine is cold
- Increase the engine speed (RPM) and check that the air flow increases with increased engine speed.
Are the values correct?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFICATION FAILED - Fault-tracing information
VERIFIED - Fault Found
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - FAULT-TRACING FAILED
No - Attempt New Test
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FAULT-TRACING FAILED - FAULT-TRACING FAILED
Attempt New Test - Checking cables
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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.