DME 7.8 DME 7.8 0 · Possible fault cause

DME 7.8 DME 7.8 0 Possible fault cause ♦Open circuit ♦Short circuit to B+ Affected terminals Terminal I/7 and I/9 Diagnosis/Troubleshooting Work instruction Display OK If not OK 1 Check wiring from DME ♦Connect special tool 9637. Low battery voltage Repair wiring har- control module, pin I/7, to ⇒ Step 2. ness ♦Measure voltage between pin I/ throttle part for short cir- → End. 7 and ground. cuit to B+. ♦Switch on the ignition. 2 Check wiring from DME ♦Connect special tool 9637. Low battery voltage Repair wiring har- control module, pin I/9, to → End. ness ♦Measure voltage between pin I/ throttle part for short cir- → End. 9 and ground. cuit to B+. ♦Switch on the ignition. 404 Throttle Jacking Unit, Control Range - Above Limit Diagnosis conditions • Driving with changing pedal position Possible fault cause ♦Short circuit to ground ♦Short circuit triggering wire ♦Sluggish throttle Affected terminals Terminal I/7 and I/9 2470 P1505 0-175 page 3 Printed in Germany – 3, 2001 p1505