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 MANUALSVOLVO1998S70 L5-2.4L VIN 55 B5254SREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSEFI / DTC CODES (ENGINE CONTROL SYSTEM)DTC EFI-155TROUBLE CODE CONDITIONS
1998 Volvo S70 L5-2.4L VIN 55 B5254S
Trouble Code Conditions
1998 Volvo S70 L5-2.4L VIN 55 B5254SSECTION Trouble Code Conditions
Code EFI-115 Injector 1
Code EFI-125 Injector 2
Code EFI-135 Injector 3
Code EFI-145 Injector 4
Code EFI-155 Injector 5
Trouble Code Conditions
- The diagnostic trouble code (DTC) for that injector is stored if an injector circuit is short-circuited to ground/supply voltage or if there is a open-circuit in the circuit.
Substitute value(s)
- Idle air trim disabled.
- Fuel trim disabled.
Possible source(s)
Signal too high:
- Short-circuit to supply voltage in signal cable.
- Defective injector.
Signal too low:
- Short-circuit to ground in signal cable.
Signal missing:
- Open-circuit in signal or power cable.
- Contact resistance in terminals.
- Defective injector.
Fault symptom(s)
- engine not firing on all cylinders. The engine may not start.
Other DTCs and Status Messages
Status message
- Select one of the following options to continue:
Alternative 1:
- Refer to: Signal Too High. Permanent Fault.
Alternative 2:
- Refer to: Signal Too Low. Permanent Fault.
Alternative 3:
- Refer to: Signal Missing. Permanent Fault.
Alternative 4:
- Refer to: Signal Too High. Intermittent Fault.
Alternative 5:
- Refer to: Signal Too Low. Intermittent Fault.
Alternative 6:
- Refer to: Signal Missing. Intermittent Fault.
Code EFI-125 Injector 2
Code EFI-135 Injector 3
Code EFI-145 Injector 4
Code EFI-155 Injector 5
Trouble Code Conditions
- The diagnostic trouble code (DTC) for that injector is stored if an injector circuit is short-circuited to ground/supply voltage or if there is a open-circuit in the circuit.
Substitute value(s)
- Idle air trim disabled.
- Fuel trim disabled.
Possible source(s)
Signal too high:
- Short-circuit to supply voltage in signal cable.
- Defective injector.
Signal too low:
- Short-circuit to ground in signal cable.
Signal missing:
- Open-circuit in signal or power cable.
- Contact resistance in terminals.
- Defective injector.
Fault symptom(s)
- engine not firing on all cylinders. The engine may not start.
Other DTCs and Status Messages
Status message
- Select one of the following options to continue:
Alternative 1:
- Refer to: Signal Too High. Permanent Fault.
Alternative 2:
- Refer to: Signal Too Low. Permanent Fault.
Alternative 3:
- Refer to: Signal Missing. Permanent Fault.
Alternative 4:
- Refer to: Signal Too High. Intermittent Fault.
Alternative 5:
- Refer to: Signal Too Low. Intermittent Fault.
Alternative 6:
- Refer to: Signal Missing. Intermittent Fault.
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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.