Briggs & Stratton VANGUARD 810 EFI Repair Manual page 42

38
DTC P0123 Throttle Position Sensor (TPS)
Step
1. Select the Dashboard ribbon and then the Sensors
tab.
1 2. Under Position Sensor heading, observe TPS Raw
Voltage display with or without the engine running.
3. Is reading 0.5-4.5 volts DC?
2 Is reading above 4.5 volts DC?
Scan Diagnostics
Action
Figure 2-26 Check TPS Raw Voltage Display.
Section 2: Troubleshooting DTCs
Yes
TPS circuit OK.
Go to DTC P0123
Non-Scan
Diagnostics.
No
Go to step 2.
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