DME 7.8 DME 7.8 0 · 0-196.3P1655

DME 7.8 DME 7.8 0 0-196.3P1655 Cooling Water Shutoff Valve - Below Limit Diagnosis conditions • Engine running • Battery positive voltage greater than 7 V • Coolant temperature greater than 90 °C or ATF temperature > 85 °C 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 ∞ Ω Repair wiring har- control module to colant wiring harness (DME control Step 2 ness shutoff valve for short to module plug) → End. ground ♦Remove connector of coolant shutoff valve ♦Measure resistance between special tool 9637 plug IV Pin 40 and coolant shutoff valve plug Pin 2 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. P1655 0-196.3 page 1 Printed in Germany – 6, 2002 p1655