TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0013 00 0013 00-21 LIGHTING AND WIPER SYSTEM TROUBLESHOOTING (Contd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 4. TURN SIGNALS OPERATE INCORRECTLY WITH TURN SIGNAL CONTROL LEVER IN ONE OR MORE POSITIONS Test turn signal control unit continuity. 1. Place battery switch in OFF position. 2. Remove cable connector from turn signal switch. 3. Remove indicator lamp from turn signal switch (WP 0102 00). 4. Set multimeter to RX 1 scale. 5. Check circuits according to Control Unit Test Chart, below. If any circuit does not test as shown in the Control Unit Test Chart, replace turn signal switch (WP 0102 00). TURN SIGNAL SWITCH TURN SIGNAL LAMP CABLE CONNECTOR Table 3. Directional Signal Systems Troubleshooting Procedures (Contd). CONTROL UNIT TEST CHART A. Directional signal control lever in NEUTRAL position CONTINUITY FROM PIN TO PIN INDICATION H A OPEN H B OPEN H C OPEN H E OPEN D C SHORTED D E SHORTED F G OPEN C. Directional signal control lever in RIGHT TURN position CONTINUITY FROM PIN TO PIN INDICATION F G SHORTED H A SHORTED H E SHORTED H B OPEN H C OPEN D C SHORTED D E OPEN B. Directional signal control lever in LEFT TURN position CONTINUITY FROM PIN TO PIN INDICATION H B SHORTED H C SHORTED H A OPEN H E OPEN F G SHORTED D E SHORTED D C OPEN D. Directional signal control lever in HAZARD WARNING position CONTINUITY FROM PIN TO PIN INDICATION H A SHORTED H B SHORTED H C SHORTED H E SHORTED D E OPEN D C OPEN F G SHORTED