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Home >> Mercedes Benz >> 2007 >> CL550 >> Repair and Diagnosis >> Electrical >> Horns >> Electrical System, Equipment & Instructions -- Basic Knowledge -- Cl550 -- 216 Chassis (1 Of 2) >> Basic Knowledge >> Component description for an engine diagnosis indicator lamp - GF54.30-P-5010V

Component description for an engine diagnosis indicator lamp - GF54.30-P-5010V

MODEL 216, 221 with ENGINE 273.961 except CODE (494) USA version up to Model Year 8 

Shown on model 171 

Location 

The engine diagnosis indicator lamp (engine symbol) is located in the instrument cluster.

Task 

To indicate faults in the fuel injection system.

Fig 1: Identifying Engine Diagnosis Indicator Lamp
G07643324Courtesy of MERCEDES-BENZ USA

Function 

The indicator lamp is actuated by the instrument cluster via a CAN message from the engine control unit. To check the function it lights up with ignition ON and as of an engine speed of approx. 500 RPM for approx. 1 s. If there is no fault, the indicator lamp goes out