SERIES 60 ON-HIGHWAY ENGINE OPERATOR'S GUIDE All information subject to change without notice.
33 DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION Flash Code Description 65 Throttle Plate Position Above Normal Range, Below Normal Range, Erratic or Not Responding 65 Air Filter Restriction and Oil Filter Restriction Sensor Voltage High 65 Air Filter Restriction and Oil Filter Restriction Sensor Voltage Low 66 Engine Knock Level Above Normal Range 66 Engine Knock Level Sensor Input Voltage High or Low 66 Engine Knock Level Sensor Not Responding 67 High Range Coolant Pressure, Air Inlet Pressure or Coolant Pressure Sensor Input Voltage High 67 High Range Coolant Pressure, Air Inlet Pressure or Coolant Pressure Sensor Input Voltage Low 68 TPS Idle Validation Circuit Fault (open circuit or short to ground) 71 Injector xxx Response Time Short 72 Vehicle Overspeed or Vehicle Overspeed (Absolute) 72 Oxygen Content Too High or Too Low 73 Air Filter Restriction High 73 Gas Valve Position Above or Below Normal Range 73 Gas Valve Position Input Voltage High or Low 73 Gas Metering Valve Not Responding 74 Optimized Idle® Safety Loop Short to Ground 74 Oil Filter Restriction High 75 Injector V (reg), Injector V (slope) or Injector I (pull-in) Voltage Failed High 75 ECU Battery Voltage High 75 RTC Backup Battery or Sensor Supply Voltage High 76 Engine Overspeed With Engine Brake 77 Miscellaneous Faults — refer to BASIC TROUBLESHOOTING.
78 Cruise Control/Adaptive Cruise Control Fault 81 Oil Level, Crankcase Pressure, Injection Control Pressure or Exhaust Temp Sensor Input Voltage High 81 Extended Crankcase Pressure Input Voltage High