DME 7.8 DME 7.8 0 · 0-110P1121

DME 7.8 DME 7.8 0 0-110P1121 430 Throttle position sensor 1 - signal implausible 430 Throttle position sensor 1 - below limit 430 Throttle position sensor 1 - above limit Diagnosis conditions • Engine running Possible fault cause ♦Open circuit in wiring ♦Short circuit in wiring ♦Throttle position sensor faulty ♦DME control module faulty Affected terminals Terminal I/7, I/9, III/10, III/24 and III/25 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check voltage supply to ♦Connect special tool 9637 See Figure 1 ⇒ Step 5 throttle motor actuator ♦Connect motor tester (oscillo- scope) to Pin I/7 and Pin I/9 ♦Use special input ♦Switch on the ignition ♦See Figure 1 ♦Fully depress accelerator pedal See Figure 2 ⇒ Step 2 2442 P1121 0-110 page 1 Printed in Germany, 2000 p1121