Dtc P0562 System Voltage Low (Non-Scan Diagnostics) - Briggs & Stratton VANGUARD M490000 Repair Manual

DTC P0562 System Voltage Low (Non-Scan Diagnostics)

Step
1 1. Disconnect and reconnect ECM J2 (Black) connector.
2. Turn Ignition ON, Engine OFF.
3. Clear codes.
2
4. Turn Ignition OFF, and then back ON.
5. Does DTC return?
2 1. Turn Ignition OFF.
2. Connect red meter test lead on DVOM to battery positive (+) post.
3. Connect black meter test lead on DVOM to battery negative (-) post.
4. Set DVOM to read volts DC.
5. Does DVOM read 12.2-14.5 volts DC?
3 1. Back probe terminal J2-18 (Red wire) of ECM J2 connector.
2. Connect terminal J2-18 back probe to red meter test lead on DVOM.
3. Connect black meter test lead on DVOM to a known good ground.
4. Turn Ignition ON, Engine OFF.
5. Observe voltage on DVOM.
6. Is reading within 0.5 volts of battery voltage?
4 1. Turn Ignition OFF.
2. Back probe terminal J2-15 (Red wire) of ECM J2 connector.
3. Connect terminal J2-15 back probe to red meter test lead on DVOM.
4. Connect black meter test lead on DVOM to a known good ground.
5. Turn Ignition ON, Engine OFF.
6. Observe voltage on DVOM.
7. Is voltage within 0.5 volt of battery voltage?
5 1. Check charging system. See the Briggs & Stratton Intek V-Twin Cylinder OHV
Repair Manual.
2. Is charging system OK?
6 1. Check battery and cables for damage, corrosion, and loose connections.
2. Is a problem found?
7 1. Disconnect ECM J2 connector.
2. Back probe terminal J2-18 (Red wire) of ECM J2 connector.
3. Connect terminal J2-18 back probe to red meter test lead on DVOM.
4. Connect black meter test lead on DVOM to B+.
5. Set DVOM to read resistance.
6. Observe reading on DVOM.
7. Is resistance 0.5 ohms or less?
68
Action Yes
Go to step 2. Problem corrected.
Go to step 3. Go to step 5.
Go to step 4. Go to step 7.
Go to step 5. Go to step 8.
Go to step 6. Repair charging
Repair as necessary. Replace battery.
-
No
system.
Repair as
necessary.
Continued...