6.2L CEC Description/Operation: Description

The Diesel Electronic Control (DEC) system is used the 6.2L Diesel engine with light duty emissions. The DEC system electronically controls EGR system operation, Torque Converter Clutch (TCC) engagement, cold advance, and glow plug system.

The DEC system consists of the following components: Electronic Control Module (ECM), Manifold Absolute Pressure (MAP) sensor, Coolant Temperature Sensor (CTS), "SERVICE ENGINE SOON" light driver module, Exhaust Gas Recirculation (EGR) valve, EGR vent solenoid, EGR solenoid, Exhaust Pressure Regulator (EPR) solenoid, Throttle Position Sensor (TPS), engine speed sensor, Vehicle Speed Sensor (VSS), ALDL connector, Torque Converter Clutch (TCC) solenoid, cold advance relay, cold advance solenoid, electronic controller/glow plug relay, and glow plugs.