Engine diagnosis indicator lamp, component description - GF54.30-P-5010SM

MODEL 171 with ENGINE 113.989 except CODE (494) USA version

MODEL 203 with ENGINE 113.988 except CODE (494) USA version

MODEL 209 with ENGINE 113.987 except CODE (494) USA version

MODEL 215 with ENGINE 113.986 except CODE (494) USA version

MODEL 220 with ENGINE 113.986 except CODE (494) USA version

Type 171

Fig 1: Identifying Engine Diagnosis Indicator Lamp - Shows Model 171

Model 203

Fig 2: Identifying Engine Diagnosis Indicator Lamp - Shows Model 203

Model 209

Fig 3: Identifying Engine Diagnosis Indicator Lamp - Shows Model 209

Model 215, 220

Fig 4: Identifying Engine Diagnosis Indicator Lamp - Shows Model 215, 220

Task

The engine diagnosis indicator lamp signals any exhaust-gas relevant faults to the driver.

Function

The engine diagnosis indicator lamp is actuated at the ground end by the ME-SFI [ME] control unit (N3/10).

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

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