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 MANUALSVOLVO2004V70 L5-2.5L TURBO VIN 59 B5254T2REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSSAS CODES (STEERING WHEEL ANGLE SENSOR MODULE)SAS-0041INTERNAL FAULT
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2
Internal Fault
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2SECTION Internal Fault
Internal fault
Checking the steering wheel angle
- Ignition off
- Disconnect the connector for the control module for the steering wheel angle sensor
- Disconnect the connector for the steering wheel module (SWM)
- Check the connectors for control module for the steering wheel angle sensor and for the steering wheel angle sensor. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
- Reinstall the components, reconnect the connectors etc.
- Ignition on
- Read off the steering wheel angle.
Turn the steering wheel between both limit positions. Check that the steering wheel angle is updated and reaches a maximum of +600° or -600°.
Other information:
- To disconnect the connector for the control module for the steering wheel angle sensor, see Contact reel / steering wheel angle sensor, replacing Contact Reel / Steering Wheel Angle Sensor, Replacing
- To disconnect the connector for the steering wheel module (SWM), see Steering wheel module (SWM), replacing Service and Repair.
°
Was the angle in excess of 600 in either direction?
Yes - Checking the installation
No - Fault Found
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Checking the installation
- Ignition off.
The diagnostic trouble code (DTC) indicates that the steering wheel module (SWM) or the steering wheel angle sensor is incorrectly installed.
Check that the steering wheel module (SWM) and the steering wheel angle sensor are correctly installed.
Other information:
- To check the steering wheel angle sensor, see Contact reel / steering wheel angle sensor, replacing Contact Reel / Steering Wheel Angle Sensor, Replacing
- To check the steering wheel module (SWM), see Steering wheel module (SWM), replacing Service and Repair.
Continue - Verification
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Verification
Verification
- Ignition off
- Reinstall the components, reconnect the connectors etc.
- Ignition on
- Read off the steering wheel angle.
Turn the steering wheel between both lock positions. Check that the steering wheel angle is updated and reaches a maximum of +600° or -600°.
Was the steering wheel angle OK?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFIED - Fault Found
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - FAULT-TRACING FAILED
No - Attempt New Test
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Attempt New Test - Checking the steering wheel angle
FAULT-TRACING FAILED - FAULT-TRACING FAILED
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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.