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 102 of 1417

FIELD MAINTENANCE

ABS - START - RETRIEVING FAULT CODES WITH THE HALDEX INFO CENTER (SCAN TOOL)

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)

Test Set, Electronic Systems

(Volume 5, WP

0826, Table 1, Item 51)

Personnel Required

(2)

References

Point to Point Schematics

WP

0185

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

ABS - START - RETRIEVING FAULT CODES WITH THE HALDEX INFO CENTER (SCAN TOOL)

NOTE

•

Conduct these malfunction tests if vehicle ABS system is malfunctioning. This procedure

will check for active and stored ABS fault codes.

•

ABS warning lamp should come on briefly at power up and then turn off. This indicates

that warning lamp system is operating properly. If lamp fails to illuminate or stays on, it

indicates a system problem and further testing is necessary.

TM 9-2320-272-23-2

0161

0161-1