Kohler command pro ECH749 Service Manual page 56

EFI SYSTEM-ECH
Code 0336
Component: Crankshaft Position Sensor
Fault: Crankshaft Position Sensor Noisy Signal
Condition: Air gap incorrect, 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 or air gap incorrect.
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: Air gap incorrect, loose sensor, open or
shorted connection or faulty sensor.
Conclusion: Crankshaft Position Sensor Related
● Sensor connector or wiring.
● Sensor loose or air gap incorrect.
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.
56
Code 0352
Component: Ignition Coil
Fault:
Condition:
Conclusion: Engine Wiring Harness Related
Code 0562
Component: System Voltage
Fault:
Condition:
Conclusion: Corroded Connections
Code 0563
Component: System Voltage
Fault:
Condition:
Conclusion: Faulty Rectifi er-Regulator
Code 61
Component: End of Code Transmission
KohlerEngines.com
Cylinder 2 Ignition Coil Malfunction
Broken wire in harness (may not be
visible), shorted connection or faulty
sensor.
● 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.
System Voltage Low
Faulty voltage regulator, bad fuse or
shorted connection.
Bad Stator
Bad Battery
● Low output charging system.
● Poor magnet in fl ywheel.
● Bad or missing fuse.
System Voltage High
Faulty voltage regulator or shorted
connection.
Bad Stator.
Bad Battery.
24 690 01 Rev. K