NOTICE: This fault does not indicate a common powertrain controller (CPC) issues, do not replace the CPC. NOTE: J1939 CM1 SPN 986 signal source #1 or #2 is erratic. NOTE: This fault indicates that the CPC has received a J1939 CM1 message; however the “SPN 986 requested fan percent speed” is in error. NOTE: If codes 168-0, 168-14, or 168-18 active fix those first. NOTE: If ECM has been programmed recently, check programming to ensure it is correct. NOTE: This code is coming from another computer on the vehicle (ABS, Transmission, etc…).

DESCRIPTION:Message not received by CPC. MONITORED PARAMETER:CM1 Message TYPICAL ENABLING CONDITIONS:Always on MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:2 seconds DASH LAMPS:None ENGINE REACTION:None VERIFICATION:Key cycle NOTE: If codes 168-0, 168-14, or 168-18 active fix those first. NOTE: If ECM has been programmed recently, check programming to ensure it is correct. NOTE: This code is coming from another computer on the vehicle (ABS, Transmission, etc…).

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 on2. 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,...

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 on2. 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,...

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 on2. 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....