DRAFT
TM 5-4210-249-13&P-1
0114
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TFFT03461
Step 20.
Turn battery disconnect switch to OFF position (WP 0007). Disconnect cab pump
control wire harness PUMP COOLER switch connector. Check for continuity across
wire 4037 (orange) from cab pump control wire harness PUMP COOLER switch
connector, terminal 6 to cab power distribution wire harness relay 2 connector,
terminal 1.
If there is no continuity, go to Step 23.
Step 21.
Check for continuity across cab power distribution wire harness wire 1640 (black) from
relay 2 connector, terminal 2 to a known good ground.
If there is no continuity, replace cab power distribution wire harness and
block (WP 0441).
Step 22.
Check for continuity across cab power distribution wire harness wire 4037 (orange)
from relay 2 connector, terminal 1 to relay 2 connector, terminal 5.
a.
If there is continuity, replace relay 2 (WP 0402).
b.
If there is no continuity, replace cab power distribution wire harness
and block (WP 0441).
0114-15