EFI SYSTEM
50
62 690 13 Rev. AKohlerEngines.com
Code 0336
Component: Crankshaft Position Sensor
Fault: Crankshaft Position Sensor Noisy Signal
Condition: Loose sensor, faulty/bad battery, shorted
or faulty connection, faulty sensor or
faulty sensor grounding.
Conclusion: Crankshaft Position Sensor Related
● Sensor connector or wiring.
● Sensor loose.
Crankshaft Position Sensor Wheel
Related
● Damaged teeth.
● Gap section not registering.
Engine Wiring Harness Related
● Pin circuit wiring or connectors.
ECU pin Black 4 and Black 13.
● ECU-to-harness connection problem.
Ignition System Related
● Non-resistor spark plug(s) used.
● Faulty or disconnected ignition coil or
secondary lead.
Code 0337
Component: Crankshaft Position Sensor
Fault: Crankshaft Position Sensor No Signal
Condition: Loose sensor, open or shorted
connection or faulty sensor.
Conclusion: Crankshaft Position Sensor Related
● Sensor connector or wiring.
● Sensor loose.
Crankshaft Position Sensor Wheel
Related
● Damaged teeth.
Engine Wiring Harness Related
● Pin circuit wiring or connectors.
ECU pin Black 4 or Black 13.
● ECU-to-harness connection problem.
If code is stored in fault history and starts
normally. Clear code, no other service
required.
Code 0351
Component: Ignition Coil
Fault: Cylinder 1 Ignition Coil Malfunction
Condition: Broken wire in harness (may not be
visible), shorted connection or faulty
sensor.
Conclusion: Engine Wiring Harness Related
● Connection to ignition or fuse.
● Pin circuit wiring or connectors.
● ECU pin Black 1.
● ECU-to-harness connection problem.
Ignition System Related
● Incorrect spark plug(s) used.
● Poor connection to spark plug.
Code 0352
Component: Ignition Coil
Fault: Cylinder 2 Ignition Coil Malfunction
Condition: Broken wire in harness (may not be
visible), shorted connection or faulty
sensor.
Conclusion: Engine Wiring Harness Related
● Connection to ignition or fuse.
● Pin circuit wiring or connectors.
ECU pin Grey 10.
● ECU-to-harness connection problem.
Ignition System Related
● Incorrect spark plug(s) used.
● Poor connection to spark plug.
Code 0562
Component: System Voltage
Fault: System Voltage Low
Condition: Faulty voltage regulator, bad fuse or
shorted connection.
Conclusion: Corroded Connections
Bad Stator
Bad Battery
● Low output charging system.
● Poor magnet in fl ywheel.
● Bad or missing fuse.
Code 0563
Component: System Voltage
Fault: System Voltage High
Condition: Faulty voltage regulator or shorted
connection.
Conclusion: Faulty Rectifi er-Regulator
Bad Stator.
Bad Battery.
Code 0650
Component: MIL Circuit
Fault: MIL Circuit Malfunction
Condition: Failure in MIL circuit detected.
Conclusion: Bad ECU.
Bad Connection.
Broken Wire.
Code 1693
Component: Tach Output (ECU)
Fault: Tach Circuit Low
Condition: Tachometer output circuit short to ground.
Conclusion: Bad Tach Wire (grounded).
GCU circuit short to ground.
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