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 MANUALSVOLVO2002S80 T6 EXECUTIVE L6-2.9L TURBO VIN 91 B6294TREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULEDIAGRAMSDIAGNOSTIC AIDSCHECKING WIRING AND TERMINALSCHECKING WIRING AND TERMINALS - PERMANENT FAULTSOPEN-CIRCUIT, PERMANENT FAULTS
2002 Volvo S80 T6 Executive L6-2.9L Turbo VIN 91 B6294T
Open-Circuit, Permanent Faults
2002 Volvo S80 T6 Executive L6-2.9L Turbo VIN 91 B6294TSECTION Open-Circuit, Permanent Faults
Open-circuit, permanent faults
An open-circuit in a cable is indicated by a loss of one or more functions.
Chafed and broken cables or terminals that have come loose are common causes of faults in electrical systems.
Repair wiring and cable terminals, using appropriate procedures.
Checks:
- Disconnect the connectors at both ends of the cable.
Connect an ohmmeter between the ends of the cable.
The ohmmeter should read approximately 0 [ohm] if there is no open-circuit in the cable
If the reading is not correct. Replace the cable and/or continue, according to "Contact Resistance and Oxidation"
Always check the control module and control module box connectors to ensure that their pins and sockets are not bent or damaged, as this can cause faults.
Check pins and terminals particularly for this fault. See "Check Terminals Visually."
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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.