User Manual

SERIES 50 OPERATOR'S GUIDE

Flash

Code

Description

72 Oxygen Content Too High or Too Low

73 AirFilterRestrictionHigh

73 Gas Valve Position Above or Below Normal Range

73 Gas Valve Position Input Voltage High or Low

73 Gas Metering Valve Not Responding

73 ESS Transmission Stuck in Gear

73 Transmissi on Neutral Switch Failure (ESS Transmission)

Aux Analog Input Data Erratic, Intermittent, or Incorrect

(ESS Transmission)

Aux Ana log Input #1 Voltage High or Low (ESS Transmission)

Optimized Idl e Safety Loop Short to Ground

Oil Filter Restriction High

ECM Battery Voltage High

RTC Backup Battery Voltage High

Sensor Supply Voltage High

Engine Overspeed With Engine Brake

Miscellaneous Faults – Refer to BASIC TROUBLESHOOT-

ING

Cruise Con trol/Adaptive Cruise Control Fault

Oil Level Sensor Input or Crankcase Pressure Sensor Input

Voltage High

81 Extended Crankcase Pressure Input Voltage High

Injection Control Pressure o r Exhaust Temperature Sensor

Input Voltage High

EGR Differential Pressure Sensor Circuit or EGR

Temperature Circuit Failed High

81 Timing Actuator Failed High or Low

Exhaust Port Tempera tu re #1, #2, #3, #4, #5, #6 , #7, #8, #9,

#10, #11, #12, #13, #14, #15 or #16 Sensor Voltage High

EGR Mass F low Smart Sensor not Responding or Failed

Oil Level Sensor or Crankcase Pressure Sensor Input

Voltage Low

All information subject to change without notice. (Rev. 01/04) 35