TM-9-2320-209-20-2-1 Troubleshooting Part 1 for M44A1 and M44A2 Series Trucks
Page 309 of 645
TM 9-2320- 209-20-2-1 Symptom 6 ONE HEADLIGHT DOES NOT LIGHT, OTHER HEADLIGHT LIGHTS 1 NOTE When checking voltage +24 volts DC means a range of +23 volts DC to +26 volts DC I ● Park truck I ● Refer to TM 9-2320-209-10 ● Check for +24 volts DC at low beam input of bad headlight ● ● ● ● Take off leads 17 (high beam), 18 (low beam), and 91 (ground) from headlight housing Set multimeter to measure +24 volts DC. Refer to test equipment procedures index Set light switch main lever to SERVICE DRIVE Put multimeter - lead on lead 91 contact and mu Itimeter + lead on lead 18 contact. Read mu Itimeter. Multimeter should read +24 volts DC. If not, push dimmer switch and read meter again Did multimeter measure +24 volts DC? GO RIGHT HEADLIGHT HOUSING \ /l FRONT HARNESS -4 114274 Figure 25-6 (Sheet 1 of 4) 25-67