TM-9-2330-330-14-P
SEMITRAILER, FUEL TANKER: 5000-GALLON, FUEL-DISPENSING, AUTOMOTIVE, M969A3
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
NOVEMBER 2005
TM-9-2330-330-14-P - Page 357 of 1116
TM 9-2330-330-14&P
0070 00-1
ABS DIAGNOSTICS/ECU VALVE REPLACEMENT
0070 00
THIS WP COVERS:
ABS Diagnostics, ECU Valve Removal, ECI Valve Installation, Follow-On Tasks
INITIAL SETUP:
Maintenance Level
Tools and Special Tools
Organizational
Tool kit, general mechanic’s (item 4, WP 0171 00)
Equipment Conditions
Semitrailer disconnected from prime mover (refer
to WP 0007 00)
Semitrailer grounded (refer to WP 0007 00)
Air reservoir drained (refer to WP 0007 00)
Negative terminal disconnected from battery (refer
to WP 0007 00)
ABS DIAGNOSTICS
NOTE
The ABS warning light must operate. If nonoperational,
correct that fault before proceeding.
Table 1. ABS Diagnostic Blink Codes.
Blink Code
Problem Area
Action
3
Sensor BU1
Roadside front
Check sensor installation.
Make necessary repairs.
4
Sensor YE1
Curbside front
Check sensor installation.
Make necessary repairs.
5
Sensor BU2
Roadside rear
Check sensor installation.
Make necessary repairs.
6
Sensor YE2
Curbside rear
Check sensor installation.
Make necessary repairs.
7
External ABS modulator
valve
Verify proper electrical installation. Check power supply.
Make necessary corrections.
9
Internal modulator failure,
inlet valve #2
Very proper installation. If code continues, replace inlet
valve #2.
10
Internal modulator failure,
inlet valve #1
Verify proper installation. If code continues, replace inlet
valve #1.
11
Internal modulator failure,
outlet valve
Verify proper installation. If code continues, replace outlet
valve.
14
Power supply
Verify proper electrical installation. Check power supply.
Make necessary corrections.
15
ECU failure
Verify proper installation. If code continues, replace ECU.
16
SAE J1708 failure
Replace ECU.
17
SAE J2497 (PLC) failure
Replace ECU.
18
Generic I/O failure
Verify proper electrical installation. Check power supply.
Make necessary corrections.
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