TM 10-3930-675-20-1
0032 00-1
AXLE BRAKE COOLING SYSTEM TROUBLESHOOTING
0032 00
THIS WORK PACKAGE COVERS
Error Code 191 - Temperature in Front Axle Above
Critical Threshold
Error Code 192 - Temperature in Rear Axle Above Crit-
ical Threshold
Error Code 414 - Bypass Valve Short Circuit Failure
INITIAL SETUP
References
TM 10-3930-675-10
ECS Steering (A34651.0200) (WP 0199 00-16)
ECS Electrical Servo (A34648.0200) (WP 0199 00-5)
WARNING
Use caution when checking wheel and hub for extreme heat. Failure to do so may cause serious burns.
NOTE
Refer to WP 0004 00 for additional troubleshooting guidance, information, and illustrations that locate criti-
cal components.
Table 1. Error Code 191 - Temperature in Front Axle Above Critical Threshold
Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 191 - Temperature in Front Axle
Above Critical Threshold
1. Enter “EXTRA FUNCT. 12
(13)” diagnostic menu and
check
temperature
of
WHEEL END FRONT HUB.
a. If menu shows 155:
(1) Check temperature sen-
sor 762-1 and connector
at left front wheel for
damage.
a. Replace temperature sensor if
damaged (WP 0092 00).
b. Replace
connector
if
damaged (WP 0111 00).
(2)Disconnect ECU (790)
connector 1 and check
continuity
between
connector 762-1 pin 1
and pin 2 and between
connector 762-1 pin 1
and pin 2 and chassis.
a. If continuity is not present,
replace temperature sensor
(WP 0092 00).
b. If continuity is present, notify
SRA to replace wire between
connectors
762-1,
X168,
X156,
and
ECU
(790)
connector 1 (WP 0111 00).
