43
UnclassifiedGeneral
What This Code Means
MIL illuminated; Engine will continue to run but not properly
Possible Causes
- •Broken or shorted wire in harness (ECU pin 18 to TPS pin 1, ECU pin 4 to TPS pin 2, ECU pin 8 to TPS pin 3)
- •Circuit providing voltage or ground to TPS damaged
- •TPS bad
- •TPS rotated on throttle shaft assembly beyond allowable range
- •TPS signal input circuit damaged
- •Throttle plate bent or damaged allowing extra airflow past, or restricting movement
- •Throttle plate loose or misaligned
- •Throttle shaft inside TPS worn, broken, or damaged
Suggested Actions
- 1Disconnect voltage to ECU to clear memory
- 2Restart engine to run TPS Auto-Learn function again
ASK RUDY ABOUT THIS FAULT
Get a diagnosis walkthrough for 43 on your specific KOHLER CO. unit — cited to the OEM manual, not a forum guess.
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