TM-9-2320-272-23-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-1 - Page 859 of 1313
PROTECTIVE CONTROL BOX ASSEMBLY TEST - Continued
STEP
1.
IS PROTECTIVE CONTROL BOX PROPERLY GROUNDED?
a.
Disconnect connector from protective control box.
b.
Set up multimeter to measure ohms.
PROTECTIVE
CONTROL BOX
T1066DAA
PROTECTIVE
CONTROL BOX
PROTECTIVE
CONTROL
CONNECTOR
A
B
C
D
E
F
G
Figure 1.
Protective Control Box Connector.
c.
Connect multimeter red lead to protective control box connector pin E. Refer to point to point schematics.
d.
Connect multimeter black lead to chassis ground.
e.
Meter reading should be less than 200 ohms.
CONDITION/INDICATION
IS PROTECTIVE CONTROL BOX PROPERLY GROUNDED?
DECISION
NO - Replace protective control box (Volume 2, WP
0319). Go to Step (10) to verify problem is solved.
YES - Go to Step (2).
TM 9-2320-272-23-1
0100
0100-2
Back to Top
