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
Condition
The rear electronic module transmits information to the central electronic module (CEM) via the control area network (CAN) about the fuel level and the fault status of the fuel level sensor. The central electronic module (CEM) transmits this information to the engine control module (ECM).
Diagnostic trouble code (DTC) REM-4A33, REM-4A34, REM-4A37 or REM-4A38 is stored in the rear electronic module if the rear electronic module has registered an electrical fault in the fuel level sensor. Diagnostic trouble code (DTC) ECM-4050 is also stored in the engine control module (ECM) (signal too high / low).
Substitute value
None.
Possible source
Signal too high:
- electrical fault in the fuel level sensor, right-hand side.
Signal too low:
- electrical fault in the fuel level sensor, left-hand side.
Fault symptom[s]
None.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.