Warning lamps (page 2 of 3)

Direction indicator The LH direction indicator warning lamp (C0230) receives a feed from the direction indicator switch (C0036) on a GR wire, via the passenger compartment fuse box (C0581 and C0590). The RH direction indicator warning lamp (C0233) receives a feed from the direction indicator switch (C0036) on a GW wire, via the passenger compartment fuse box (C0581 and C0590).

Oil temperature (all except Japan) The oil temperature warning lamp (C0234) receives a feed from the oil temperature unit (C1666) on a NU wire.

Snow mode (Japan only) Operation of the snow mode warning lamp (C0234) is controlled by a Pulse Width Modulated (PWM) signal from the ECM (C0914), which is input to the instrument pack on a WG wire. This signal also operates the gear ratio indicator in the odometer display and the gearbox fault warning lamp.

Oil pressure The earth route for the oil pressure warning lamp (C0230) is through the oil pressure switch (C0187) on a WN wire. When there is no engine oil pressure, the switch is closed and the WN wire is connected to earth through the switch body.

Engine Management / MIL Warning Lamp In accordance with ECD3 legislation, the ECM uses an On Board Diagnostic (OBD) strategy and can record faults relating to the engine management and EM-CVT gearbox interface unit functions. After detecting a fault which causes an increase of emissions above the legislated threshold, in addition to storing a ’P’ code, the ECM also illuminates a Malfunction Indicator Lamp (MIL) in the instrument pack. The ECM also performs a 2 seconds bulb check of the MIL each time the ignition is switched on.

The engine management/MIL warning lamp (C0230) is operated by the ECM (C0159) connecting a UO wire to earth.

Anti-lock Brake System (ABS) The ABS warning lamp (C0234) is operated by the ABS modulator (C0501) connecting a UR wire to earth.

Engine bay cooling fan The engine bay cooling fan warning lamp (C0234) is operated by the ECM (C0159) connecting a GR wire to earth.

Rear fog guard When the rear fog guard lamps are illuminated, the rear fog guard warning lamp (C0233) receives a feed from the multi function ECU (C0016) on a UY wire.