Scania fault code 438

Code 438 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:

ELC Electronically controlled air suspension Sensor signal from pressure sensor for tag axle or rearmost rear axle. The voltage on the input from the pressure sensor has been too low. Read explanation → CSS Crash Safety System Ignition circuit, driver’s airbag. The capacitance of the igniter is too high. Read explanation →