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-3010SIGNAL TOO LOW
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2
Signal Too Low
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2SECTION Signal Too Low
Signal too low
Checking the status
- Start the engine.
Read off the fault status of the camshaft position (CMP) sensor. Check the status of the fault when the diagnostic status is COMPLETED. If the fault status is "NO FAULT FOUND" when the diagnostic status is COMPLETE there is an intermittent fault.
Continue - Checking connectors and wiring
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Checking connectors and wiring
- Ignition off.
Check the connector for the camshaft position (CMP) sensor. Check for contact resistance and oxidation.
Check the signal cable between control module terminal #A27 (#A27) and camshaft position (CMP) sensor connector terminal #3. Check for an open-circuit. Check for a short-circuit to ground.
Check the power cable between control module terminal #A29 (#A29) and camshaft position (CMP) sensor connector terminal #1. Check for an open-circuit.
Try a new camshaft position (CMP) sensor if no fault is found during the above fault-tracing.
Other information:
- To connect the breakout box / access the control module, see Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box
- For the location of components on 5 cylinder engines, see Location of components Locations
- For the location of components on 6 cylinder engines, see Location of components Locations
- For information about signals on 5 cylinder engines, see Signal specification Signal Description / Specification
- For information about signals on 6 cylinder engines, see Signal specification Signal Description / Specification
- 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.
- Reinstall the connectors, components etc.
- Start the engine. Rev the engine to approximately 4000 rpm a few times
- Read off the diagnostic status and the fault status for diagnostic trouble code (DTC) ECM-3010.
Check that the fault status is "NO FAULT FOUND" when the diagnostic status is COMPLETED. If the fault status is "FAULT FOUND" when the diagnostic status is COMPLETED there is a fault.
Is the fault status "NO FAULT FOUND"?
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 the status
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.