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Home >> GMC >> 1994 >> Forward Control 4.3 Z, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 6.5L Diesel >> Diagnostic Trouble Code Charts >> DTC 13 - Engine Shutoff Solenoid Circuit Fault >> Notes

DTC 13 - Engine Shutoff Solenoid Circuit Fault: Notes

When ignition switch is in OFF position, engine shutoff solenoid is in NO FUEL position. By providing a ground path, PCM energizes the solenoid which then allows fuel to pass into the fuel pump. DTC 13 will set when:

Or

PCM will default to a current and history DTC 13 will be stored.

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. Check for open circuit from ignition switch to solenoid.
  2. Check the engine shutoff solenoid control circuit for open from solenoid to PCM.