Series 60 DDEC V Troubleshooting

Section 70.1 Description of Flash Code 74

Section 70.1
Description of Flash Code 74

The SAE J1587 equivalent code for Flash Code 74 is p 70/4.‪

Flash Code 74 indicates that the Park Brake digital input is shorted to ground between the VIH connector and one of the switches (Park Brake Switch, Neutral Switch, Hood Switch or optional OEM interlock).‪

  • If this code is inactive, it may indicate that the vehicle moved during Optimized Idle® operation or that two consecutive engine start attempts were not successful.
  • Flash Code 74 may also indicate that the relay coil is open or is shorted (causing the unsuccessful engine start).


Series 60 DDEC V Troubleshooting Guide - 6SE570
Generated on 10-13-2008

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