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.
Diagnostic Trouble Code (DTC) Information
2004 Volvo V70 L5-2.4L VIN 64 B5244S6SECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information ECM-9A0A
Condition
Diagnostic functions in the engine control module (ECM) may activate substitute values that result in the drivability of the car being affected. The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects that the drivability of the car has been negatively affected.
Substitute value
- None.
Possible source
- Faults that are detected by another diagnostic function and whose substitute values affect drivability negatively.
Fault symptom[s]
- Message in the display
- The cruise control does not function at all
- Jerky operation
- Uneven idle
- Poor accelerator pedal (AP) response
- The accelerator pedal (AP) is ignored when braking.
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.