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P0380 Diagnostic Trouble Code Discussion for April 2014

Glow Plug Feedback Circuit


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Trouble Ticket Help Requests for DTC P0380
Help Request Posted
2004 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on VIN: 1GCHK231X4
P0380: Glow plug heater circuit problem. Changed all glow plugs with o.e. Parts, code reoccured after approx 3 starts. Checked for output to the glow plugs,no voltage. Had b+ and ground at the glow plug module. Replaced module, cleared code, 3 starts later, code reoccured. This time i have voltage at...
April 23, 2014