Oil Pressure Gauge: Loyale

Turn ignition off. If gauge needle is not resting at lower stop, replace oil pressure gauge. Turn ignition on and start engine. If gauge is inaccurate, go to step 4). If gauge needle does not rise beyond lower stop, turn off engine. Leave ignition on.
Check fuse. If fuse is okay. Measure voltage at Yellow/Black wire terminal of 12-pin connector on back of instrument cluster. If 12 volts are present, repair wiring between oil pressure gauge and oil pressure sending unit.
If 12 volts are not present, measure voltage at Black/White wire of 12-pin connector on back of instrument cluster. If 12 volts are present, replace oil pressure gauge. If 12 volts are not present, repair power supply to instrument cluster.
If gauge is inaccurate as in step 1), turn off engine. Leave ignition on. Disconnect oil pressure sending unit connector. Connect a 140-ohm resistor between oil pressure sending unit connector and ground.
If oil pressure gauge reads 57 psi (4 kg/cm² ), replace oil pressure sending unit. If oil pressure gauge does not read 57 psi (4 kg/cm² ), replace oil pressure gauge.