DME 7.8 DME 7.8 0 · 0-P0223P0223

DME 7.8 DME 7.8 0 0-P0223P0223 Accelerator pedal potentiometer 2 – above limit Diagnosis conditions • Ignition on (approx. 30 sec.) • Battery positive voltage greater than 7 V Possible fault cause ♦Short circuit to B+ in signal wire ♦Pedal sensor faulty Affected terminals Terminal IV/13 Note! ♦The system operates in pedal sensor standby mode, i.e. the angle of the accelerator pedal is calculated from the residual position sensor signal. ♦The maximum pedal value is limited to 30 %. ♦The dynamic is limited. 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 IV/13 to wiring harness (DME control ⇒ Step 2 ness pedal sensor, pin 2, for module plug) → End. short circuit to B+. ♦Switch on the ignition ♦Measure voltage between spe- cial tool pin IV/13 and ground 2 Replace pedal sensor → End 2078 P0223 0-P0223 page 1 Printed in Germany – 13, 2003 p0223