Organizational Troubleshooting (continued)
TEST OR INSPECTION
c. If light does not come on, continue operation as required.
When operation is complete, disconnect battery and remove
Do steps 2 through 4 as quickly as possible before system cools
Shut down engine.
Disconnect battery and lower control panel.
If thermometer indicates less than 155F, go immediately to
If thermometer indicates 155F or higher, allow system to
cool before operating. Continued operation could damage ECU.
Disconnect main harness connector P12 (36, figure 4-38) from
If continuity between pins G and H of P12, the thermal
switch in generator is closed, indicating an overtemp
condition. If unit has been recently run with heavy ac load,
allow unit to cool before operating. If unit has not been
run with ac load, generator is defective. Notify maintenance
If resistance between pins G and H of P12 is greater than
10K, reconnect P12 to GCU, and do step 4.
Remove battery charger access cover. Disconnect main harness
Check for open circuit between pins 10L and 6L of P5.
a. If continuity between pins 10L and 6L of P5, replace
b. If open circuit between pins 10L and 6L of P5, replace GCU