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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSVOLVO2004S80 L6-2.9L TURBO VIN 91 B6294TREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSPSM CODES (POWER SEAT MODULE)PSM-0021PERMANENT FAULTTOO LONG TIME
2004 Volvo S80 L6-2.9L Turbo VIN 91 B6294T
Too Long Time
2004 Volvo S80 L6-2.9L Turbo VIN 91 B6294TSECTION Too Long Time
Too long time. Permanent fault
Checking inputs
Check the function of the control panel buttons.
Hint: The value should change when the button is activated.
Replace the control panel if the power seat control module (PSM) does not receive any signal.
Other information:
- To access or replace the control panel, see Side panel, replacing Side Panel Front Seat, Replacing
- To connect the breakout box, see Connecting the breakout box, power seat module (PSM) Connecting the Breakout Box, Power Seat Module (PSM)
- For information about signals, see Signal specification, Power seat module Signal Specification, Power Seat Module (PSM).
Is the function OK?
Yes - FAULT FOUND
No - No Fault Found
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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.