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 238 of 1417

FIELD MAINTENANCE

ABS - NO DATA (BLANK SCREEN ON HALDEX INFO-CENTER)

INITIAL SETUP:

Tools and Special Tools

Tool Kit, General Mechanic's: Automotive

(Volume 5, WP

0826, Table 1, Item 56)

ABS Diagnostic Info Centre (TM 9-2320-272-10)

Multimeter

(Volume 5, WP

0826, Table 1, Item 34)

Test Set, Electronic Systems

(Volume 5, WP

0826, Table 1, Item 51)

Personnel Required

(2)

References

Point to Point Schematics

References (cont.)

WP

0159

WP

0161

WP

0307

WP

0349

WP

0350

Volume 3, WP

0352

Volume 3, WP

0452

Volume 3, WP

0463

Volume 3, WP

0467

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

ABS - NO DATA (BLANK SCREEN ON HALDEX INFO-CENTER)

STEP

1.

IS COMMUNICATION LINK LOOSE OR DAMAGED?

Check diagnostic equipment connections and cables for damage and sound connections.

CONDITION/INDICATION

IS COMMUNICATION LINK LOOSE OR DAMAGED?

DECISION

NO - Replace wire harness (Volume 3, WP

0467). Go to Step (7) to verify problem is solved.

YES - Go to Step (2).

STEP

2.

ARE BATTERIES, CABLES, AND CONNECTIONS OK?

Check condition of batteries, cable, and connections. Refer to point to point schematics.

CONDITION/INDICATION

ARE BATTERIES, CABLES, AND CONNECTIONS OK?

DECISION

NO - Repair or replace faulty battery cable (WP

0349) or battery ground

cable (WP

0350). Go to Step (7) to verify problem is solved.

YES - Go to Step (3).

TM 9-2320-272-23-2

0185

0185-1