Kohler KG2204

24 Diagnostic Troubleshooting Codes TP-6903 5/16a
P-Code SPN FMI Description Possible Cause Corrective Action
P0125 110 17 Insufficient Coolant
Temperature for Closed
Loop Fuel Control
 Problem with the CT
sensor or leads.
 Check CT sensor leads. Refer to
Section 4.3.
 Replace CT sensor. Refer to
Section 5.2.
P0126 110 18 Insufficient Coolant
Temperature for Stable
Operation
 Problem with the CT
sensor or leads.
 Check CT sensor leads. Refer to
Section 4.3.
 Replace CT sensor. Refer to
Section 5.2.
P0127 105 16 Intake Air Temperature
Too High
 Blocked CAC, cabin
fan not working,
intake air duct
separated.
 Clean debris from air cleaner.
 Check the fan leads.
 Check the fan fuses.
 Reconnect intake air duct.
P0128 110 17 Coolant Thermostat
(Coolant Temperature
Below Thermostat
Regulating
Temperature)
 Problem with the CT
sensor or leads.
 Check CT sensor leads. Refer to
Section 4.3.
 Replace CT sensor. Refer to
Section 5.2.
P0129 108 18 Barometric Pressure
Too Low
 Actual atmospheric
condition, TMAP
sensor/leads if you
also have a TMAP
fault.
 Replace the TMAP sensor. Refer
to Section 5.10.
P0131 3217 4 HEGO sensor Circuit
Low Voltage (B1S1)
 Problem with the
HEGO sensor or
leads.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
P0132 3217 3 HEGO sensor Circuit
High Voltage (B1S1)
 Problem with the
HEGO sensor or
leads.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
P0133 3217 13 HEGO sensor Circuit
Slow Response (B1S1)
 Problem with the
HEGO sensor or
leads.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
P0134 3217 31 HEGO sensor No
Activity Detected (B1S1)
 Problem with the
HEGO sensor or
leads.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
P0137 3227 4 O2 Sensor Circuit Low
Voltage (B1S2)
 Not applicable  Not applicable
P0138 3227 3 O2 Sensor Circuit High
Voltage (B1S2)
 Not applicable  Not applicable
P0139 3227 13 O2 Sensor Circuit Slow
Response (B1S2)
 Not applicable  Not applicable
P0140 3227 31 O2 Sensor No Activity
Detected (B1S2)
 Not applicable  Not applicable
P0151 3256 4 O2 Sensor Circuit Low
Voltage (B2S1)
 Not applicable  Not applicable
P0152 3256 3 O2 Sensor Circuit High
Voltage (B2S1)
 Not applicable  Not applicable
P0153 3256 13 O2 Sensor Circuit Slow
Response (B2S1)
 Not applicable  Not applicable