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TURN SIGNAL LAMPS CONDITION POSSIBLE CAUSES CORRECTION ONE TURN SIGNAL LAMP 1. Ineffective or missing bulb. 1. Test and replace turn signal bulb as 2. Ineffective ground circuit. 2. Test and repair open ground circuit as 3. Ineffective feed circuit. 3. Test and repair open right or left turn 4. Ineffective TIPM inputs or 4. Use a diagnostic scan tool to test the 5. Ineffective CCN inputs or 5. Use a diagnostic scan tool to test the 6. Ineffective SCCM inputs or 6. Use diagnostic scan tool to diagnose LIN ALL RIGHT SIDE AND/OR ALL 1. Ineffective switch. 1. Test and replace left multi-function switch 2. Ineffective feed circuit. 2. Test and repair open right or left turn 3. Ineffective CCN inputs or 3. Use a diagnostic scan tool to test the 4. Ineffective TIPM inputs or 4. Use a diagnostic scan tool to test the ALL RIGHT SIDE OR ALL LEFT 1. Ineffective or missing bulb. 1. Test and replace faulty bulb as required. 2. Ineffective ground circuit. 2. Test and repair open ground circuit as 3. Ineffective feed circuit. 3. Test and repair open right or left turn STANDARD PROCEDURE FRONT LAMP AIMING VEHICLE PREPARATION FOR LAMP ALIGNMENT 1. Check for and correct any burnt out bulbs. 2. Repair or replace any ineffective, worn or damaged body or suspension components that could hinder proper lamp alignment. 3. Verify proper tire inflation pressures. 4. Remove any accumulations of mud, snow or ice from the vehicle underbody and clean the front lamp lenses. 5. Verify that there is no load in the vehicle (cargo or passengers), except for the driver. 6. The fuel tank should be FULL. Add 2.94 kilograms (6.5 pounds) of weight over the fuel tank for each estimated gallon of missing fuel. 7. Verify correct vehicle suspension height. PM LAMPS/LIGHTING - EXTERIOR - SERVICE INFORMATION 8L - 77 |