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-23X0
Condition
The engine control module (ECM) checks the signal cable for the injector. The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects that the signal for the injector is too high, too low or missing.
The diagnostic trouble code (DTC) can be diagnosed at ignition on and with the engine running.
Substitute value
- Fuel trim disabled.
Possible source
- Contact resistance or oxidation, injector connector
- Short-circuit to supply voltage in the signal cable
- Short-circuit to ground in the signal cable
- Open-circuit in the signal cable
- Damaged injector.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit
- Engine not firing on all cylinders
- The starter motor turns but the engine does not start.
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.