Self-Diagnostic System: Notes

1992 Volvo 240 Base, 4D Sedan, Automatic, AW70LSECTION Notes

When ignition switch is turned to ON position SRS warning light located in instrument panel light bar should come on. If SRS warning light does not come on, go to SRS WARNING LIGHT PROBLEMS. If SRS warning light remains on for longer than 10 seconds, an SRS fault code is present. WAIT 20 seconds to allow SRS to complete its own system self-diagnostics. Grounding the SRS test terminal with jumper wire will cause SRS warning light on instrument panel to display fault codes in crash sensor memory. Fault codes are indicated by different combinations of flashes. Fault codes are displayed 4 seconds apart. Crash sensor will display all fault codes in its memory only once.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.