S60 AWD L5-2.5L Turbo VIN 59 B5254T2 (2005)
Repair wiring and cable terminals, using appropriate procedures.
In theory, the resistance across contacts, leads and terminals should be 0 [ohm]. However, there is always some resistance due to terminal oxidation.
If this resistance becomes too great the result will be a malfunction. The magnitude of the resistance before it causes a malfunction depends on the circuit
load.
Checks:
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Check the cables visually according to "Check Terminals Visually."
NOTE: Do not apply rust solvent spray or grease to the Heated Oxygen Sensor (HO2S) or combined instrument panel connectors.
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Ignition off
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Disconnect the battery negative terminal
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Use compressed air to clean the disconnected connector
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Apply rust solvent spray 1161422 to the disconnected connectors
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Blow clean using compressed air.