3E91

3E91 - P0336

Information saved in
DDE

Fault code
3E91 - P0336

Fault text
DDE: Crankshaft sensor, signal: incorrect signal

Fault description
A crankshaft signal error is recognized when the number of
sensor plausibility check errors reaches the limit 200. The
error counter increases by the step width 10.

Condition for fault identification
Test condition:
The check starts as soon as the engine starts and continues
for as long as the engine runs. The system monitors the
crankshaft signal at every crankshaft flank (= crankshaft
tooth).
Voltage condition:
The check starts as soon as the engine starts and continues
for as long as the engine runs. The system monitors the
crankshaft signal at every crankshaft flank (= crankshaft
tooth).

Condition for fault memory entry
-200 / 10 Monitoring cycles

Action in service
Check the following potential fault causes and repair as
needed:
1. Intermittent contact at plug.
2. Change in gap between sensor and reluctor ring (excentric
reluctor ring geometry, gap too wide, loose sensor, sensor
movement).
3. Crankshaft sensor defect stemming from collision with
reluctor ring.
4. Damaged reluctor ring.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none