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-0021DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2
Diagnostic Trouble Code (DTC) Information
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2SECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code information
Condition
The steering wheel angle sensor has two circuits each with 4 LEDs and 4 receptors which read off their individual code wheel. One circuit measures the steering wheel angle and the other measures steering wheel revolutions. If the steering wheel angle sensor (SAS) control unit registers a faulty steering wheel position signal from the steering wheel angle sensor, diagnostic trouble code SAS-0021 is set.
Substitute value
- Stabilising function disconnected.
- Anti-spin function blocked.
Possible source
- Internal fault in steering wheel angle sensor.
- Internal fault in the steering wheel angle sensor control unit.
Fault symptom[s]
- Anti-spin warning lamp is on.
- Stabilising function not working.
- Anti-spin does not work.
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.