Dtc P0032 Signal Voltage High (Non-Scan Diagnostics) - Briggs & Stratton VANGUARD M490000 Repair Manual

DTC P0032 Signal Voltage High (Non-Scan Diagnostics)

Step
1 1. Disconnect and reconnect O
connectors.
2. Turn Ignition ON, Engine OFF.
3. Clear codes.
4. Turn Ignition OFF, and then back ON.
5. Does DTC return?
2 1. Turn Ignition OFF.
2. Back probe (using fused patch cord) terminal B (White/Green
wire) on engine side of O
3. Connect terminal B back probe to red meter test lead on DVOM.
4. Back probe terminal D (Brown wire) on engine side of O
connector.
5. Connect terminal D back probe to black meter test lead on
DVOM.
6. Set DVOM to read volts DC.
7. Turn Ignition ON, Engine Off.
8. Observe voltage on DVOM.
9. Is reading 12.2-13.5 volts DC?
3 1. Start and run engine.
2. Observe voltage on DVOM.
3. Within 15 seconds, does voltage reading drop to less than 100
millivolts?
O Sensor Connector
2
Action
sensor and ECM J2 (Black)
2
sensor connector.
2
Yes
Go to step 2.
Go to step 3.
sensor
2
O sensor OK.
2
Clear codes and retest.
No
Problem corrected.
2
Ensure probe
connectivity.
Replace O sensor.
2
19