Test Atmospheric pressure sensor (in control unit) Flash code: 2x long, 8x short Fault indication: Fault indicated by steady light at EDC indicator lamp Fault path: Atmospheric pressure sensor in control unit defective Effect of fault: No direct effect In some cases, this may be accompanied by a turbo pressure sensor fault being signalled Possible cause Control unit defective 57 Test Measurement Corrective measures Control unit If only this fault code is stored in the memory, testing is not possible as the sensor is located in the con- trol unit.
If, however, a faulty turbo pressure sensor is also detected, it should be checked first in accordance with the turbo pressure sensor test (page 42). – Replace control unit