DME 7.8 DME 7.8 0 · 0-38.3P0203

DME 7.8 DME 7.8 0 0-38.3P0203 Fuel Injector, Cylinder 3 – Open Circuit Diagnosis conditions • Engine running • Battery positive voltage greater than 7 V Possible fault cause ♦Fuel injector (coil) open circuit ♦Open circuit in wiring ♦DME control module Affected terminals Terminal III/15 Note! Open circuit causes the fuel injector to be continually closed. Diagnosis/Troubleshooting Work instruction Display OK If not OK 1 Check fuel injector ♦Remove connector of fuel injec- 11 - 13 Ω Replace fuel injector tor 3 (at 20 °C) → End ♦Connect special tool V.A.G. Step 2. 1315 A/1 ♦Measure resistance at special tool V.A.G. 1315 A/1 2 Check wiring harness for ♦Connect special tool 9637 to Repair wiring har- open circuit. wiring harness (DME control ness module plug). → End. ♦Remove connector of fuel injec- tor ♦Measure resistance between 0 - 5 Ω special tool 9637 pin III/15 and Step 3. fuel injector plug pin 2 2440 P0203 0-38.3 page 1 Printed in Germany – 6, 2002 p0203