DME 7.8 DME 7.8 0 · 0-165P1386

DME 7.8 DME 7.8 0 0-165P1386 222 Knock control test pulse - signal implausible Diagnosis conditions • Engine speed less than 5,600 rpm • Knock control active • Engine load greater than 45 % Possible fault cause ♦DME control module Note! When a fault is stored, the ignition angle is retarded for all cylinders in the range in which knock control is active. Affected terminals - Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Replace DME control module ⇒ Step 2 2 Perform adaptation ♦Switch on the ignition → End ♦Wait one minute ♦Do not press the accelerator ♦Switch off the ignition for at least 10 seconds ♦Read out the fault memory 2470 P1386 0-165 page 1 Printed in Germany, 2000 p1386