Dtc P0337 Signal Voltage Absent (Non-Scan Diagnostics) - Briggs & Stratton VANGUARD M490000 Repair Manual

DTC P0337 Signal Voltage Absent (Non-Scan Diagnostics)
Step
1 1. Disconnect and reconnect CKP sensor connector.
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. Disconnect cylinder 1 fuel injector connector.
3. Install Briggs & Stratton Noid Light (Part No. 19623).
4. Observe Noid Light while cranking engine.
5. Does Noid Light flash?
3 1. Turn Ignition OFF.
2. Obtain two Briggs & Stratton Spark Testers (Part No. 19368).
3. Install spark testers in line with high tension leads and spark
plugs.
4. Look for spark in tester windows while cranking engine.
5. Is spark observed?
4 1. Turn Ignition OFF.
2. Replace CKP sensor.
3. Is problem corrected?
Noid Light (Part No. 19623)
Action Yes
Go to step 2.
Go to step 3.
Check CKP sensor connections.
-
Spark Tester (Part No. 19368)
No
Problem corrected.
2
Go to step 3.
Go to step 4.
Repair or replace
EFI wire harness.
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