TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 70 of 1417
TROUBLESHOOTING ABS WITHOUT DIAGNOSTIC TOOLS - Continued
c.
Verify that the ABS power supply wire is connected to circuit #10 and the grommet on the firewall the
wires pass through is in place and not damaged. Refer to point to point schematics.
CONDITION/INDICATION
IS THE ABS POWER SUPPLY CONNECTION OK?
DECISION
NO - Replace ABS wiring harness (Volume 3, WP
0464). Go to Step (15) to verify problem is solved.
YES - Go to Step (6).
TM 9-2320-272-23-2
0156
0156-7
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