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-91ACFAULTY SIGNAL
2003 Volvo V70 2.4 L5-2.4L VIN 61 B5244S
Faulty Signal
2003 Volvo V70 2.4 L5-2.4L VIN 61 B5244SSECTION Faulty Signal
Faulty signal
Checking the throttle
Hint: A film of oil covering the throttle may mean that the flame trap is not functioning correctly.
- Ignition on
- Activate reading off the position of the throttle
- Check that both sensors indicate values within the permitted range at different deployments.
Small objects can cause the throttle disc to jam momentarily. This may cause the diagnostic trouble code (DTC) to be stored.
Check if the throttle unit is blocked. Press the throttle disc to check for jamming.
Remedy as necessary.
Other information
- Connecting the breakout box Connecting the Breakout Box
- Signal specification Signal Description / Specification
- Throttle body (electronic throttle module (ETM)), replacing Removal and Replacement
- Engine control module (ECM), replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals
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.
Activate reading off the position of the throttle.
Check that both sensors indicate values within the permitted range at different deployments.
Are these values within their permitted ranges?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFIED - Fault Found
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
In case of this defect, troubleshooting is not followed by verification.
The information can be displayed again or the fault-tracing for this fault can be interrupted.
Do you want to view the information again?
Yes - Attempt New Test
No - Fault Found
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Attempt New Test - Checking the throttle
FAULT FOUND - Fault Found
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RENDER: 1.0x
NO RELATED
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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.