DME 7.8 DME 7.8 0 · 0-137P1230

DME 7.8 DME 7.8 0 0-137P1230 155 Fuel Injector, Cylinder 5 - Below Limit Diagnosis conditions • Engine running • Battery positive voltage greater than 7 V Possible fault cause ♦Short circuit to ground in wiring ♦DME control module Affected terminals Terminal III/2 Note! Short to ground causes the fuel injector to be permanently open. 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 5 (at 20 °C) → End ⇒ Step 2 ♦Connect special tool V.A.G. 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- short to ground wiring harness (DME control ness module plug) → End ♦Remove connector of fuel injec- tor ♦Measure resistance between ∞ Ω special tool 9637 pin III/2 and ⇒ Step 3 ground 2440 P1230 0-137 page 1 Printed in Germany – 1, 2000 p1230