Detroit Diesel

DESCRIPTION:
This fault code sets when the engine oil pressure is higher than a calibrated pressure for the specific rpm.

MONITORED PARAMETER:
Engine oil pressure.

TYPICAL ENABLING CONDITIONS:
Always on

MONITOR SEQUENCE:
Key on engine running.

EXECUTION FREQUENCY:
Continuous when enabling conditions are met.

TYPICAL DURATION:
Two seconds

DASH LAMPS:
CEL

ENGINE REACTION:
1. None.
2. Engine derate or engine shut down.
3. Calibration dependent.

VERIFICATION:
While the engine is at normal operating temperature, road test performing several decelerations.

NOTE: If diagnostic leads to a mechanical (Non-electrical) low oil pressure conditions, all mains and connecting rods should be inspected.

NOTE: If 100-3 is active as well, fix 100-3 first.

NOTE: If 100-4 is active as well, fix 100-4 first.

PROBABLE CAUSES:
If oil pressure is fluctuating:
1. Oil level low or high.
2. Faulty oil gauge.
3. Cracked or loose oil pump suction pipe.
4. Loose drive or driven oil pump gear.
5. Fault oil pressure relief valve.

PROBABLE CAUSES:
If oil pressure is low but stable:
1. Fuel in oil.
2. High oil level.

DESCRIPTION:
Fault code sets when engine oil pressure is less than a calibrated threshold.

MONITORED PARAMETER:
Engine oil pressure.

TYPICAL ENABLING CONDITIONS:
Always on

MONITOR SEQUENCE:
1. Key on
2. Engine running

EXECUTION FREQUENCY:
Continuous when enabling conditions are met.

TYPICAL DURATION:
Two seconds

DASH LAMPS:
1. SEL
2. CEL

ENGINE REACTION:
1. None.
2. Engine derate or engine shut down.
3. Calibration dependent.

VERIFICATION:
Check at engine operating temperature

NOTE: The Common Powertrain Controller (CPC) digital outputs have the same SPN as some Motor Control Module (MCM) faults.

NOTE: If 100-1 and 100-3 are both active, work on repairing 100-3 first.

NOTE: If 100-1 and 100-4 are both active, work on repairing 100-4 first.

PROBABLE CAUSES:
1. Low oil level, check system for leaks.
2. Oil level sesnor connector/harness.
3. Oil level sensor.
4. Oil level pressure fluctuating.
5. High oil level, check for fuel or coolant entering oil system.
6. Oil pump suction pipe cracked or loose.
7. Oil pump drive and driven gear loose.
8. Faulty oil pressure relief valve.

DESCRIPTION:
This fault code sets when the engine oil pressure is less than a calibrated threshold.

MONITORED PARAMETER:
Engine oil pressure

TYPICAL ENABLING CONDITIONS:
Always on

MONITOR SEQUENCE:
1. Key on
2. Engine running

EXECUTION FREQUENCY:
Continuous when enabling conditions are met.

TYPICAL DURATION:
Two seconds

DASH LAMPS:
CEL

ENGINE REACTION:
1. None.
2. Engine derate.
3. Engine shut down-calibration dependent.

VERIFICATION:
Check at engine operating temperature.

NOTE: Whenever a low engine oil pressure is confirmed the crankshaft main bearings and rod bearings should be inspected for damage or excessive wear.

NOTE: If 100-1 and 100-3 are both active, work on repairing 100-3 first.

NOTE: If 100-1 and 100-4 are both active, work on repairing 100-4 first.

PROBABLE CAUSES:
1. Low oil level, check system for leaks.
2. Oil level sesnor connector/harness.
3. Oil level sensor.
4. Oil level pressure fluctuating.
5. High oil level, check for fuel or coolant entering oil system.
6. Oil pump suction pipe cracked or loose.
7. Oil pump drive and driven gear loose.
8. Faulty oil pressure relief valve.

DESCRIPTION:
This fault code sets when the engine power has been limited to prevent engine damage due to a low oil pressure condition.

MONITORED PARAMETER:
Engine oil pressure

TYPICAL ENABLING CONDITIONS:
Always on

MONITOR SEQUENCE:
1. Key on
2. Engine running

EXECUTION FREQUENCY:
Continuous when enabling conditions are met.

TYPICAL DURATION:
Two seconds

DASH LAMPS:
CEL

ENGINE REACTION:
1. Engine derate.
2. Engine shut down.
3. Calibration dependent.

VERIFICATION:
Check at engine operating temperature.

NOTE: Whenever a low engine oil pressure is confirmed the crankshaft main bearings and rod bearings should be inspected for damage or excessive wear.

POSSIBLE CAUSES:
1. Failed oil pressure sensor.
2. Initial start after oil maintenance.
3. Vehicle is parked on a steep incline.
4. Improper oil level.
5. Oil dilution.
6. Leaks in the oil suction manifold.
7. Leaks at the oil suction pipes.
8. Failed oil pump.

NOTE: If 100-3 is active as well, fix 100-3 first.

NOTE: If 100-4 is active as well, fix 100-4 first.

PROBABLE CAUSES:
If oil pressure is fluctuating:
1. Oil level low or high.
2. Faulty oil gauge.
3. Cracked or loose oil pump suction pipe.
4. Loose drive or driven oil pump gear.
5. Fault oil pressure relief valve..

PROBABLE CAUSES:
If oil pressure is low but stable:
1. Fuel in oil.
2. High oil level.

DESCRIPTION:
This fault code sets when the engine oil pressure is less than a calibrated threshold.

MONITORED PARAMETER:
Engine oil pressure.

TYPICAL ENABLING CONDITIONS:
Always on

MONITOR SEQUENCE:
1. Key on
2. Engine running

EXECUTION FREQUENCY:
Continuous when enabling conditions are met.

TYPICAL DURATION:
Two seconds

DASH LAMPS:
CEL

ENGINE REACTION:
1. None.
2. Engine derate.
3. Engine shut down – Calibration dependent.

VERIFICATION:
Check at engine operating temperature.

NOTE: Whenever a low engine oil pressure is confirmed the crankshaft main bearings and rod bearings should be inspected for damage or excessive wear.

NOTE: When active, the engine has a 25% derate. Once minimum oil pressure is achieved for a specific time, the fault will go inactive.

PROBABLE CAUSES:
1. If any other oil pressure sensor faults, fix those first.
2. Oil pressure sensor.
3. Oil pressure sensor connector/harness.
4. Mechanical failure causing low oil pressure.

DESCRIPTION:
Short to voltage or open on Engine Oil Pressure (EOP) circuit.

MONITORED PARAMETER:
Engine oil pressure.

TYPICAL ENABLING CONDITIONS:
Always on

MONITOR SEQUENCE:
1. Key on
2. Engine running

EXECUTION FREQUENCY:
Continuous when enabling conditions are met.

TYPICAL DURATION:
Two seconds

DASH LAMPS:
CEL

ENGINE REACTION:
None

VERIFICATION:
Check at engine operating temperature.

NOTE: If diagnostic leads to a mechanical (non-electrical) low oil pressure condition, all mains and connecting rods should be inspected.

NOTE: If 100-3, 94-3, and 4407-3 are present, repair the short to power between pin 82 of the 120 pin ECM connector and the engine oil, doser fuel line, and doser fuel compensation sensors.

PROBABLE CAUSES:
1. Engine oil pressure sensor connector/harness.
2. Engine oil pressure sensor.

NOTE: If diagnostic leads to a mechanical (non-electrical) low oil pressure conditions, all mains and connecting rods should be inspected.

NOTE: If 100-4, 94-4, 4407-4, 3609-4, and 3610-4 are present, repair the short to ground between pins 82 of the 120-pin ECM connector and the engine oil, hydrocarbon doser fuel line, hydrocarbon doser fuel compensation sensor, DPF inlet, and DPF outlet pressure sensors.

NOTE: If 100-4, 94-4, and 4407-4 are present, repair the open between pin 82 of the 120-pin ECM connection and the engine oil, doser fuel line, and doser fuel compensation sensors.

PROBABLE CAUSES:
1. Engine oil pressure sensor connector/harness.
2. Engine oil pressure sensor.

NOTE:
No information available for this code.