Kohler Command PRO ECH630 Service Manual page 66

Section 5
EFI Fuel System
Code: 0336
Component: Crankshaft Position Sensor
Fault: Crankshaft Position Sensor Noisy
Signal
Condition: Air gap incorrect, loose sensor, faulty/bad
batt ery, shorted or faulty connection, faulty sensor or
faulty sensor grounding.
Possible Causes:
1. Crankshaft Position Sensor Related
a. Sensor connector or wiring.
b. Sensor loose or air gap incorrect.
2. Crankshaft Position Sensor Wheel Related
a. Damaged teeth.
b. Gap section not registering.
3. Engine Wiring Harness Related
a. Pin circuit wiring or connectors.
ECU pin Black 4 and Black 13.
b. ECU-to-harness connection problem.
4. Ignition System Related
a. Non-resistor spark plug(s) used.
b. 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.
Possible Causes:
1. Crankshaft Position Sensor Related
a. Sensor connector or wiring.
b. Sensor loose or air gap incorrect.
2. Crankshaft Position Sensor Wheel Related
a. Damaged teeth.
3. Engine Wiring Harness Related
a. Pin circuit wiring or connectors.
ECU pin Black 4 or Black 13.
b. ECU-to-harness connection problem.
4. If code is stored in fault history and starts
normally. Clear code, no other service required.
5.34
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.
Possible Causes:
1. Engine Wiring Harness Related
a. Connection to ignition or fuse.
b. Pin circuit wiring or connectors.
ECU pin Black 1.
c. ECU-to-harness connection problem.
2. Ignition System Related
a. Incorrect spark plug(s) used.
b. 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.
Possible Causes:
1. Engine Wiring Harness Related
a. Connection to ignition or fuse.
b. Pin circuit wiring or connectors.
ECU pin Grey 10.
c. ECU-to-harness connection problem.
2. Ignition System Related
a. Incorrect spark plug(s) used.
b. Poor connection to spark plug.
Code: 0562
Component: System Voltage
Fault: System Voltage Low
Condition: Faulty voltage regulator, bad fuse or
shorted connection.
Possible Causes:
1. Corroded Connections
2. Bad Stator
3. Bad Batt ery
a. Low output charging system.
b. Poor magnet in fl ywheel.
c. Bad or missing fuse.