m1. TWO STEADY MODE LIGHTS ILLUMINATE ON CENTRAL TIRE INFLATION SYSTEM (CTIS) ECU             KNOWN INFO                         TEST OPTIONS                REASON FOR QUESTION     YES NO        POSSIBLE PROBLEMS        Visual Inspection START WARNING Read WARNING on following page. 1. Nothing Are two steady mode lights illuminated during inflation? If two mode lights illuminate during inflation, air supply to manifold valve assembly may not be adequate. Go to step 4 of this fault. INITIAL SETUP   Equipment Conditions     Engine shut down (TM 9-2320-365-10).   Materials/Parts     Soap, Laundry (Item 69, Appendix D)   Personnel Required     (2) Tools and Special Tools   Materials/Parts   Tool Kit, Genl Mech (ltem 44, Appendix C)   Goggles, Industrial (Item 15, Appendix C)   Trestle, Motor Vehicle Maintenance (2)   (Item 45, Appendix C)   Pan, Wash (Item 25, Appendix C)   Wrench, Torque, 0-200 lb-in. (Item 58, Appendix C) TM 9-2320-365-20-2 2-1768          Change 1 Faulty air hose from wet tank to manifold valve assembly. Faulty air compressor or governor adjustment. Faulty wheel valve venting. Faulty manifold valve assembly relief valve. Faulty manifold valve assembly. Faulty quick release valve(s). Faulty rear axle quick release valve fittings. Faulty front quick release valve fittings. Faulty front tee fittings. Faulty manifold valve assembly delivery port fittings. Faulty cab floor supply hose fittings. Faulty supply hoses from quick release valve(s) to wheel valve(s). Faulty wheel valve filters. Faulty electrical connections at CTIS ECU and manifold valve assembly. Faulty CTIS ECU.