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Engine Electrical 6D-35 Preheating System Glow Plug Replacement Circuit Diagram Legend 1. Engine Control Switch 8. Glow Plug Indicator Light 10. Starter Cut Relay 11. To Exhaust Brake Solenoid Valve 12. Starter Relay Precautions during maintenance Adequate care should be taken as over-tightening the Removal 1. Remove the engine harness, the throttle position sensor, the EGR valve, the pressure sensor, and 2. Remove the EGR valve and the EGR adapter. of foreign material. N6A6586E |