TROUBLESHOOTING THE M998 ELECT SYST. - OD1617 - LESSON 1/TASK 1
FIGURE 6.
HEATER SYSTEM SCHEMATIC.
Step 3. Disconnect lead 27D from the heater fan switch and, using a
multimeter, check for battery voltage at lead 27D.
If battery
voltage is present, go to step 4.
If voltage is not present,
disconnect lead 27C from the circuit breaker and check for battery
voltage. If battery voltage is not present, replace the body wiring
harness, following the procedures contained in paragraph 4-62 of the
TM.
If the wiring harness cannot be repaired, notify IDS
maintenance.
If battery voltage is present, continuity check the
If continuity is not present, replace the circuit
breaker, following the procedures contained in paragraph 4-9 of the
TM.
21
Previous Page
