135

UnclassifiedGeneral

What This Code Means

There is no engine protection for oil pressure during genset operation; An 'OIL PRESSURE SENSOR OOR' warning is displayed after the fault condition is sensed for 10 seconds

Possible Causes

  • •Base board could be defective
  • •Engine oil pressure sensor output is out of range (high or low)
  • •Engine oil pressure sensor signal is out of range − shorted high or low
  • •Harness could be defective
  • •Oil pressure sensor output is out of range (OOR), high
  • •Sensor connections could be defective
  • •Sensor could be defective

Suggested Actions

  1. 1Check the connectors
  2. 2Check the sender
  3. 3Check the wires
  4. 4Consult the engine service manual
  5. 5Disconnect the oil pressure sensor leads and connect an oil pressure sensor simulator to the harness. If the control responds to the simulator, replace the sensor. If the control does not respond, go to the next step.
  6. 6Inspect the sensor and engine harness connector pins. Repair or replace as necessary.
  7. 7Remove connector P11 from the Base board and the connector from the sensor. Check P11-1, 2 & 3 for a short circuit from pin to pin (more than 200k ohms is OK) and for an open circuit (10 ohms or less is OK). Repair or replace as necessary.
  8. 8With all connectors attached, check the pressure signal (.5 to 4.5 VDC) at P11-3 (OP OUT) and P11-2 (OP COM). If within range, replace the Base board.

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