Kohler KG2204 Service page 76

Action
 Verify that the engine has oil pressure using a mechanical oil
pressure gauge before proceeding with this chart. Oil pressure must
remain above 6 psi.
Does the engine have oil pressure above 6 psi?
 Turn the ECM power ON.
 Connect Spectrum in system data mode.
 Note all codes stored in the ECM. Clear any stored codes.
 Start the engine and operate to full operating temperature.
Does the DTC reset?
 Clear the DTC.
 Turn the ECM power OFF.
 Disconnect the oil pressure sender connector and isolate the
connector from the engine ground.
 Start and run the engine.
Does the DTC reset?
 Disconnect the ECM harness connector.
 Inspect the ECM connector pin for damage, corrosion, or
contamination.
Did you find a problem?
 Turn the ECM power OFF.
 Using a DVOM, check for continuity between the oil pressure sender
connector pin and ECM connector P26 pin 31.
Does the DVOM show continuity?
 Turn the ECM power OFF.
 Using a DVOM, check for continuity between the oil pressure sender
connector pin and engine ground.
Does the DVOM show continuity?
 Replace the oil pressure sender. Refer to Section 5.9.
Is the replacement complete?
 Remove all test equipment except Spectrum.
 Connect any disconnected components.
 Using Spectrum, clear DTC information from the ECM.
 Turn the ECM power OFF and wait 30 seconds.
 Start the engine and operate to full operating temperature.
 Observe the engine performance.
 After operating the engine, check for any stored codes.
Does the engine operate normally with no stored codes?
 Replace the ECM. Refer to Section 5.4.
Is the replacement complete?
 Remove all test equipment except Spectrum.
 Connect any disconnected components.
 Using Spectrum, clear DTC information from the ECM.
 Turn the ECM power OFF and wait 30 seconds.
 Start the engine and operate to full operating temperature.
 Observe the engine performance.
 After operating the engine, check for any stored codes.
Does the engine operate normally with no stored codes?
Figure 4-22 Oil Pressure Sender Troubleshooting
76 Electrical System and Sensor Troubleshooting
Yes No
Repair faulty
Go to the next step.
lubrication system
Troubleshoot as an
Go to the next step.
intermittent problem.
Replace the oil
Go to the next step. pressure sender (skip
the next two steps)
Replace the oil
Repair the circuit as
pressure sender (skip
necessary.
the next step)
Repair the shorted
Go to the next step.
circuit as necessary.
Repair the shorted
Go to the next step.
circuit as necessary.
Go to the next step.
The system is OK. Go to the next step.
Go to the next step.
Restart the oil pressure
sender troubleshooting
The system is OK. procedure. Look for
other DTC codes
stored in the ECM.
TP-6903 5/16a