TM-9-2320-283-13-P
ANTI-LOCK BRAKE SYSTEM (ABS) M915A1
TECHNICAL MANUAL; OPERATOR AND FIELD MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL)
AUGUST 2012
TM-9-2320-283-13-P - Page 63 of 400
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TM 9-2320-283-13&P
0011
FIELD MAINTENANCE
TROUBLESHOOTING INDEX
AND DIAGNOSTIC TROUBLE CODE INDEX
TROUBLESHOOTING INDEX
Malfunction/Symptom
Troubleshooting Procedures
INDICATORS AND CONTROLS
Warning light does not illuminate with ignition on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-13
Warning light does not go out with ignition on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-13
Warning light illuminated during vehicle operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-13
BRAKE SYSTEM
Parking brakes will not release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-13
Trailer brakes will not apply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-13
Brakes grab or pull to one side when applied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-14
Modulators cannot be heard to cycle when ignition is switched on . . . . . . . . . . . . . . . . . . .WP 0012-14
One or more wheels lock (skid) when service brake is applied . . . . . . . . . . . . . . . . . . . . . .WP 0012-14
PNEUMATIC SYSTEM
Air pressure will not build up to operating pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-14
Air pressure gauge indicates more than 120 psi (8.3 bar) . . . . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-15
Air is heard leaking from vehicle continuously . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-15
DIAGNOSTIC TROUBLE CODES INDEX
1st Blink Code No.
Description
Work Package/Page No.
1
No Faults
2
Table 1. Wheel Speed Sensors . . . . . . . . . . . . . .WP 0012-5
3
Table 1. Wheel Speed Sensors . . . . . . . . . . . . . .WP 0012-5
4
Table 1. Wheel Speed Sensors . . . . . . . . . . . . . .WP 0012-5
5
Table 1. Wheel Speed Sensors . . . . . . . . . . . . . .WP 0012-5
6
Table 3. Power Supply . . . . . . . . . . . . . . . . . . . .WP 0012-8
7
Table 2. Pressure Modulator Valves . . . . . . . . .WP 0012-7
8
Table 2. Pressure Modulator Valves . . . . . . . . .WP 0012-7
9
Table 2. Pressure Modulator Valves . . . . . . . . .WP 0012-7
10
Table 2. Pressure Modulator Valves . . . . . . . . .WP 0012-7
11
Table 4. J1939 Serial Communications . . . . . .WP 0012-10
12
Table 5. ECU
. . . . . . . . . . . . . . . . . . . . . . . . .WP 0012-10
13
Table 6. Miscellaneous
. . . . . . . . . . . . . . . . . .WP 0012-11
END OF WORK PACKAGE
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