DME 7.8 DME 7.8 0 · 0-79P0501

DME 7.8 DME 7.8 0 0-79P0501 120 Vehicle speed - open circuit Diagnosis conditions • Inertia fuel shutoff • Engine temperature greater than 30 °C • Engine speed between 1,480 rpm and 2,520 rpm. Possible fault cause ♦Open circuit or short circuit in wire from rear right wheel speed sensor to ABS control module ♦Rear right wheel speed sensor faulty ♦Pulse wheel for speed sensor damaged or contaminated with brake dust ♦Open circuit or short circuit in wire from ABS control module? to DME control module ♦ABS control module faulty ♦DME control module faulty Affected terminals III/52 Diagnosis/Troubleshooting Work instruction Display OK If not OK 1 Read PSM control module No fault in memory. If a rear right wheel fault memory. speed sensor fault is stored, remedy the fault according to PSM Trouble- shooting. 4515 P0501 0-79 page 1 Printed in Germany – 3, 2001 p0501