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-1600DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2
Diagnostic Trouble Code (DTC) Information
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2SECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information ECM-1600
Condition
Diagnostic trouble code (DTC) ECM-1600 (signal too high or too low) is stored if the signal from the boost pressure sensor is outside its normal range. The fault is diagnosed by the control module when the ignition is on / the engine is running. Diagnostic trouble code (DTC) ECM-1600 (faulty signal) is stored if the signal from the boost pressure sensor is within its normal range but deviates from the calculated boost pressure. The fault is diagnosed by the control module when the engine is running.
Substitute value
Limited boost pressure (if the signal is too high).
Possible source
Signal too high:
- Contact resistance or oxidation in the terminals
- Short-circuit to supply voltage in the signal cable
- Open-circuit in the signal cable
- Open-circuit on signal ground cable
- Defective boost pressure sensor.
Signal too low:
- Short-circuit to ground in the signal cable
- Defective boost pressure sensor.
Faulty signal:
- Loose boost pressure sensor
- Contact resistance or oxidation in the terminals
- Defective boost pressure sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit
- Poor performance.
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.