Kohler EFI EKT740 [51/104] Efi system
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Kohler EFI EKT740 [51/104] Efi system

Kohler EFI EKT740 [51/104] Efi system
5132 690 12 Rev. -- KohlerEngines.com
EFI SYSTEM
Code 0117
Component: Engine Temperature Sensor
Fault: Engine 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: Engine Temperature Sensor
Fault: Engine 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.
Code 0122
Component: Throttle Position Sensor (TPS)
Fault: TPS Circuit Low Voltage or Open
Condition: Open connection, broken wire or faulty
sensor.
Conclusion: TPS Related
● 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.
Code 0123
Component: Throttle Position Sensor (TPS)
Fault: TPS Circuit High Voltage
Condition: Shorted connection or faulty sensor.
Conclusion: TPS Sensor Related
● 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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