Briggs & Stratton VANGUARD 810 EFI Repair Manual page 57

Section 2: Troubleshooting DTCs
DTC P0336 Crankshaft Position (CKP) Sensor
Step
1. Select the Dashboard ribbon and then the Sen-
sors tab.
2. Under VR Sensor heading, observe the Tooth Error
1
Count with or without the engine running.
3. Is reading below 20?
Is reading 20 or above?
2
Scan Diagnostics
Action
Figure 2-42 Check C23X Tooth Error Count Display.
Yes
CKP sensor
circuit OK.
Go to DTC P0336
Non-Scan
Diagnostics.
53
No
Go to step 2.
-