CHECK ENGINE indicator lamp, component description - GF54.30-P-5011KE

MODEL 203.040 /740 with ENGINE 271.948 with CODE (494) USA version

Location up to 03/2004

The indicator lamp (labelled CHECK ENGINE in yellow) is located in the center of the instrument cluster (A1).

Fig 1: Identifying Check Engine Indicator Lamp - Location Up To 03/2004

Location as of 04/2004

The indicator lamp (labelled CHECK ENGINE in yellow) is located on the right in the instrument cluster (A1).

Fig 2: Identifying Check Engine Indicator Lamp - Location As Of 04/2004

Task

The indicator lamp signals faults relevant to exhaust emissions to the driver.

Function

The indicator lamp is actuated by the ME control unit (N3/10) at the ground end when the engine is started.

If there is no fault, the ME control unit interrupts the actuation and the indicator lamp goes out.

To check the bulb function it lights up for approx. 1 second when the ignition is switched "ON".