DME 7.8 DME 7.8 0 · 0-196.2P1654

DME 7.8 DME 7.8 0 0-196.2P1654 Cooling Water Shutoff Valve - Above Limit Diagnosis conditions • Engine running • Battery positive voltage greater than 7 V Possible fault cause ♦Wiring harness ♦DME control module Affected terminals Terminal IV/40 Diagnosis/Troubleshooting Work instruction Display OK If not OK 1 Check wiring from DME ♦Connect special tool 9637 to 0 V Repair wiring har- control module to cool- wiring harness (DME control Step 2 ness ant shutoff valve for short module plug) → End. circuit to B+ ♦Remove connector of coolant shutoff valve ♦Measure voltage between spe- cial tool 9637 plug IV Pin 40 and ground ♦Switch on the ignition. 2 Replace DME control module Step 3 3 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. P1654 0-196.2 page 1 Printed in Germany – 6, 2002 p1654