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This instruction show you guide on how to repair Caterpillar 24 fault code,PID 100-3 oil pressure voltage high.
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The Engine Control Module (ECM) detects the following conditions:
The signal voltage from the engine oil pressure sensor is greater than 4.95 VDC for more than eight seconds.
The ECM has been powered for at least two seconds.
-The 168-01 Low ECM Battery Power is not active.
The 232-03 5 Volt Supply voltage high is not active.
-The 232-04 5 Volt Supply voltage low is not active.
The engine is not running or the engine coolant temperature is greater than 38 °C (100 *F).
The Engine Control Module(ECM)continuously creates a pull-up voltage on the signal wire for each sensor.The ECM uses this pull-up voltage in order to detect a problem in the signal circuit.When the ECM detects voltage that is above a threshold on the signal wire,the ECM activates a-3diagnostic code.When the ECM detects voltage that is below a threshold on the signal wire,the ECM activates a-4diagnostic code.
Note:There maybe a delay of 30 seconds in order for Caterpillar Electronic Technician(ET) to display an active diagnostic code.When you check for a diagnostic code,be sure to wait at least 30 seconds.
The most likely cause of a code is a problem with an electrical connector or wiring.The least likely cause of a code is the ECM.
Probable Causes:
1) ECM Connection
2) Sensor or harness failure
3) Failed ECM
More repair case for Caterpillar machine,please refer to:Caterpillar Machine Repair
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Tags: Caterpillar
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