Kohler Command PRO ECV630 Service Manual page 41

Code 0108
Component: Manifold Absolute Pressure Sensor
Fault: MAP Circuit High Voltage
Condition: Intake manifold leak, shorted connection
or faulty sensor.
Conclusion: MAP Sensor Related
● Sensor malfunction.
● Vacuum leaks from loose manifold or
sensor.
Wire Harness Related
● Poor grounding.
● Pin circuit wiring or connectors at Black
11.
Bad TPS Learn.
Code 0112
Component: Intake Air Temperature Sensor
Fault: Intake Air Temperature Sensor Circuit
Low Voltage
Condition: Shorted connection, faulty sensor or
shorted wire.
Conclusion: Temperature Sensor Related
● Sensor wiring or connection.
Engine Wiring Harness Related
● Pin circuits Black 10 and Black 8 may
be damaged or routed near noisy
signal (coils, alternator, etc.).
● ECU-to-harness connection problem.
Code 0113
Component: Intake Air Temperature Sensor
Fault: Intake Air Temperature Sensor Circuit
High Voltage or Open
Condition: Shorted connection, faulty sensor, broken
wire or connection.
Conclusion: Temperature Sensor Related
● Sensor wiring or connection.
Engine Wiring Harness Related
● Pin circuits ECU Black pin 10 and 8
may be damaged.
● ECU-to-harness connection problem or
broken wire.
Code 0117
Component: Coolant/Oil Sensor
Fault: Coolant/Oil Temperature Sensor Circuit
Low Voltage
Condition: Shorted connection, faulty sensor or
shorted wire.
Conclusion: Temperature Sensor Related
● Sensor wiring or connection.
Engine Wiring Harness Related
● Pin circuits Black 10 and Black 14
maybe damaged or routed near noisy
signal (coils, stator, etc.).
● ECU-to-harness connection problem.
24 690 02 Rev. D
Code 0118
Component: Coolant/Oil Sensor
Fault:
Condition:
Conclusion: Temperature Sensor Related
Code 0122
Component: Throttle Position Sensor (TPS)
Fault:
Condition:
Conclusion: TPS Related
KohlerEngines.com
EFI SYSTEM-ECV
Coolant/Oil Temperature Sensor Circuit
High Voltage or Open
Shorted connection, faulty sensor, open
connection or broken wire.
● Sensor wiring or connection.
Engine Wiring Harness Related
● Pin circuits ECU Black pin 10 and 14
may be damaged.
● ECU-to-harness connection problem or
broken wire.
System Related
● Engine is operating above 176°C
(350°F) temperature sensor limit.
TPS Circuit Low Voltage or Open
Open connection, broken wire or faulty
sensor.
● TPS bad or worn internally.
Engine Wiring Harness Related
● Broken or shorted wire in harness.
ECU Black pin 10 to TPS pin 1.
ECU Black pin 12 to TPS pin 3.
ECU Black pin 16 to TPS pin 2.
Throttle Body Related
● Throttle shaft inside TPS worn, broken,
or damaged.
● Throttle plate loose or misaligned.
● Throttle plate bent or damaged
allowing extra airflow past, or restricting
movement.
ECU Related
● Circuit providing voltage or ground to
TPS damaged.
● TPS signal input circuit damaged.
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