TM 9-6115-729-24
0013
ELECTRONIC TECHNICIAN (ET) TROUBLESHOOTING - Continued
CORRECTIVE ACTION - Continued
b. Check the voltage between engine ground and the test points in Table 1. If
voltage is not present at a test point, the problem is in the device, in the wire
or in the connector that precedes the point in the circuit. Refer to Figure 3
and FO-1, Sheet 2 as required).
(1) If the voltage is 24 3 Vdc at all test points, the wire 800KEY001-P19-T
between ECM connector ENG-P1-70 and connector ENG-P37 is
defective. Repair wire 800KEY001-P19-T and/or connections between
connector ENG-P37 and ECM connector ENG-P1-70 (WP 0090).
(2) If the voltage is not 24 3 Vdc at a test point, repair the device,
FO-2, sheet 2; FO-4, sheets 1-4).
c.
On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
DEVICE (Figure 3)
TERMINAL
Diode D1
Either side
DEAD CRANK SWITCH
Terminals for NORMAL crank
J30/P30 connector
9
Resistor Assembly A7
11
Resistor Assembly A7
12
GSC
RM2
ECS
6
ECS
10
GSC
RM1
GSC
RM39
TB-4
17-22
Connector ENG-P37
40
