Code 0117; Code 0118; Code 0122; Code 0123 - Kohler Command PRO EFI Series Service Manual

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.

Code 0118

Component: Coolant/Oil Sensor
Fault: Coolant/Oil Temperature Sensor Circuit
High Voltage or Open
Condition: Shorted connection, faulty sensor, open
connection or broken wire.
Conclusion: Temperature Sensor Related
● 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.
62 690 05 Rev. E

Code 0122

Component: Throttle Position Sensor (TPS)
Fault:
Condition:
Conclusion: TPS Related

Code 0123

Component: Throttle Position Sensor (TPS)
Fault:
Condition:
Conclusion: TPS Sensor Related
KohlerEngines.com
EFI SYSTEM
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 airfl ow past, or restricting
movement.
ECU Related
● Circuit providing voltage or ground to
TPS damaged.
● TPS signal input circuit damaged.
TPS Circuit High Voltage
Shorted connection or faulty sensor.
● Sensor connector or wiring.
● Sensor output aff ected or disrupted by
dirt, grease, oil, wear.
● Sensor loose on throttle body manifold.
Throttle Body Related
● Throttle shaft or bearings worn/
damaged.
Engine Wiring Harness Related
● ECU pins Black 10, 12 and 16
damaged (wiring, connectors).
● ECU pins Black 10, 12 and 16 routed
near noisy electrical signal (coils,
alternator).
● Intermittent 5 volt source from ECU
(pin Black 16).
● ECU-to-harness connection problem.
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