EFI SYSTEM
42
17 690 15 Rev. --
KohlerEngines.com
Diagnostic Code Summary
Code 0031
NOTE: Codes 0031 and 0032 may have been
mistakenly activated by turning key ON with
oxygen sensor disconnected. If either code
status is historic, that code may have set during
assembly or a previous repair and may not be
related to current event. Clear codes and retest
to confi rm. If code status is current, refer to
Oxygen Sensor (O2) earlier in this section, to
test and troubleshoot.
Component: Oxygen Sensor Heater
Fault:
O2S Heater Circuit Low Voltage
Condition:
System voltage too low, open connection
or faulty sensor.
Conclusion: Engine Wiring Harness Related
● Pin circuit wiring or connectors.
ECU black pin 7 or broken wire.
Oxygen Sensor Related
● Sensor connector or wiring problem.
Poor system ground from ECU to engine
or battery to engine.
Code 0032
NOTE: Codes 0031 and 0032 may have been
mistakenly activated by turning key ON with
oxygen sensor disconnected. If either code
status is historic, that code may have set during
assembly or a previous repair and may not be
related to current event. Clear codes and retest
to confi rm. If code status is current, refer to
Oxygen Sensor (O2) earlier in this section, to
test and troubleshoot.
Component: Oxygen Sensor Heater
Fault:
O2S Heater Circuit High Voltage
Condition:
System voltage too high, shorted
connection or faulty sensor.
Conclusion: Oxygen Sensor Related
● Sensor connector or wiring problem.
● Sensor damaged.
● Pin circuit wiring or connectors at Black
7.
ECU Related
● ECU-to-harness connection problem.
Code 0107
Component: Manifold Absolute Pressure (TMAP)
Fault:
MAP Circuit Low Voltage or Open
Condition:
Throttle body leak, open connection or
faulty sensor.
Conclusion: TMAP Sensor Related
● Sensor malfunction.
● Vacuum leaks from loose throttle body
or sensor.
Wire Harness Related
● Poor grounding or open circuit.
● Wire harness and connectors loose,
damaged or corroded.
● Pin circuit wiring or connectors at Black
10, 11 and 16.
Bad TPS Learn.
Code 0108
Component: Manifold Absolute Pressure (TMAP)
Fault:
MAP Circuit High Voltage
Condition:
Throttle body leak, shorted connection or
faulty sensor.
Conclusion: TMAP Sensor Related
● Sensor malfunction.
● Vacuum leaks from loose throttle body
or sensor.
Wire Harness Related
● Poor grounding.
● Pin circuit wiring or connectors at Black
11.
Bad TPS Learn.
Summary of Contents for Carryall 300 2021
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Page 565: ...GASOLINE ENGINE HARNESS Wiring Diagrams Gasoline Engine Harness 26...
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Page 567: ...GASOLINE KEY START MAIN HARNESS Wiring Diagrams Gasoline Key Start Main Harness 26...
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Page 569: ...GASOLINE PEDAL START MAIN HARNESS Wiring Diagrams Gasoline Pedal Start Main Harness 26...
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Page 571: ...GASOLINE INSTRUMENT PANEL HARNESS Wiring Diagrams Gasoline Instrument Panel Harness 26...
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Page 573: ...GASOLINE FNR HARNESS Wiring Diagrams Gasoline FNR Harness 26...
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Page 575: ...ELECTRIC MAIN HARNESS Wiring Diagrams Electric Main Harness 26...
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Page 577: ...ELECTRIC INSTRUMENT PANEL HARNESS Wiring Diagrams Electric Instrument Panel Harness 26...
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Page 579: ...ELECTRIC ACCESSORIES HARNESS Wiring Diagrams Electric Accessories Harness 26...
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