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 MANUALSVOLVO2010XC70 AWD L6-3.2L VIN 96 B6324S2REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONP CODE CHARTSP0181P018121 (ENGINE CONTROL MODULE - ECM)DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2010 Volvo XC70 AWD L6-3.2L VIN 96 B6324S2
Diagnostic Trouble Code (DTC) Information
2010 Volvo XC70 AWD L6-3.2L VIN 96 B6324S2SECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information ECM-P018121
Condition
The engine control module (ECM) checks the signal from the fuel temperature sensor.
If the control module detects that the value from the fuel temperature sensor deviates too much from the values for engine and intake temperature or outdoor temperature after the engine has been turned off a longer time, the diagnostic trouble code is generated.
The diagnostic trouble code can be diagnosed at ignition on after the engine temperature has dropped by at least 55 °C from fully warm engine (higher than 70 °C).
Substitute value
- The signal from the engine coolant temperature (ECT) sensor is used.
Possible source
- Contact resistance in the connectors.
- Damaged fuel temperature sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
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.