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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 54 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P066A-P066F, P0671-P0674, P067A, or P067B >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Circuit  Short to Ground Open/High Resistance Short to Voltage Signal Performance
Control - Terminal 1/A @ E12A Glow Plug 1 P066A P0671 P066B -
Control - Terminal 1/A @ E12B Glow Plug 2 P066C P0672 P066D -
Control - Terminal 1/A @ E12C Glow Plug 3 P066E P0673 P066F -
Control - Terminal 1/A @ E12D Glow Plug 4 P067A P0674 P067B -
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