P0726
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Check Engine on.
Engine-speed Sensor Electrical Fault
Fault symptom
Conditions
The following conditions apply for the DTC in question:
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Engine speed above 770 rpm, more than 10 crankshaft revolutions since start and an implausible difference in time from one reading of the crankshaft position to the next.
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Diagnostic help
The diagnosis detects electrical malfunctions. The control module uses pump speed x 2 as a substitute value. P1335 will be generated at the same time as P0726 is generated.