DME 7.8 DME 7.8 0 · 0-18.2P0122

DME 7.8 DME 7.8 0 0-18.2P0122 Accelerator Pedal Potentiometer 1 – Below Limit Diagnosis conditions • Ignition on (approx. 30 sec.) • Battery positive voltage greater than 7 V Possible fault cause ♦Short circuit to ground ♦Pedal sensor Affected terminals Terminal IV/8 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 ∞ Ω Repair wiring har- control module, Pin IV/8, wiring harness (DME control Step 2. ness to pedal sensor, Pin 2, for module plug). → End. short circuit to ground ♦Measure resistance between special tool Pin IV/8 and ground 2 Replace pedal sensor → End. → End. 2078 P0122 0-18.2 page 1 Printed in Germany – 6, 2002 p0122