Kohler KG2204

32 Diagnostic Troubleshooting Codes TP-6903 5/16a
P-Code SPN FMI Description Possible Cause Corrective Action
P0656 96 31 Fuel Level Output
Circuit Fault
 Not applicable  Not applicable
P0657 650 5 Actuator Power Supply
Voltage A Circuit Open
 Problem with the
actuator power
voltage circuit.
 Check the relay coil and leads for
power and continuity.
P0658 650 4 Actuator Power Supply
Voltage A Circuit Low
 The actuator power
supply is lower than
expected.
 Check the actuator relay coil and
leads for power and continuity.
P0659 650 3 Actuator Power Supply
Voltage A Circuit High
 The actuator power
supply is higher than
expected.
 Check the relay coil and leads for
power and continuity.
 Check the battery and battery
charging alternator.
P0686 1485 4 ECM/PCM Power Relay
Control Circuit Low
 Problem with the
power control relay
circuit.
 Check power control relay and
leads.
 While the engine is running,
check for high system voltage at
the battery, alternator, and the
ECM power input pin.
P0687 1485 3 ECM/PCM Power Relay
Control Circuit High
 Problem with the
power control relay
circuit.
 Check power control relay and
leads.
P0691 1071 4 Fan 1 Control Circuit
Low
 Not applicable  Not applicable
P0692 1071 3 Fan 1 Control Circuit
High
 Not applicable  Not applicable
P0693 1071 4 Fan 2 Control Circuit
Low
 Not applicable  Not applicable
P0694 1071 3 Fan 2 Control Circuit
Low
 Not applicable  Not applicable
P0695 1071 4 Fan 3 Control Circuit
Low
 Not applicable  Not applicable
P0696 1071 3 Fan 3 Control Circuit
Low
 Not applicable  Not applicable
P0698 3511 4 Sensor Reference
Voltage C Circuit Low
 Problem with 5 V
sensor power supply.
 Check the ECM leads.
 Check for sensor shorts for
sensors using 5 V sensor power
supply by disconnecting all
sensors and then connecting
back one at a time.
 Isolate a defective sensor. While
monitoring the sensor power
supply with a scan tool or
voltmeter, disconnect all sensors
powered from the sensor
reference voltage C power
supply. When the defective
sensor is plugged back in, the
voltage will fall.
 Replace the ECM. Refer to
Section 5.4.