Engine oil pressure warning lamp: Notes

Fig 1: Identifying Engine Oil Pressure Warning Lamp

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: Identifying Engine Oil Pressure Warning Lamp Wiring

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The oil pressure warning lamp is located in the top right -hand corner. It warns the driver when engine oil pressure is too low.

The lamp is supplied with current in the main instrument unit and grounded via terminal 2 (K20) of the oil pressure sensor.

If the oil pressure is below 0.3 -0.5 bar, the oil pressure sensor contacts close, the circuit is grounded and the lamp lights up. At the same time the central warning lamp lights up and, at engine speeds above 310 rpm, the MIU sends a request to the SID unit for activation of an acoustic signal.