Can I obtain trouble codes for 1995 Volvo 850?

Yes, you can obtain trouble codes for a 1995 Volvo 850 using the onboard diagnostic system. This model uses a diagnostic connector located under the dashboard, where you can connect a code reader or scanner. Alternatively, you can read the codes manually by using a jumper wire to connect specific pins in the diagnostic connector, which will cause the check engine light to blink a series of codes. Always refer to a service manual for the correct procedures and pin configurations.