TM 10-3930-675-24-1
AXLE BRAKE COOLING SYSTEM TROUBLESHOOTING - CONTINUED
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Table 3. Error Code 414 - Brake Cooling Bypass Valve,
Short Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Error Code 414 - Brake Cooling Bypass Valve,
Short Circuit Failure.
Error code 414 is an information type error
code. If may not activate for the operator. The
operator may report the error codes 191 or 192
(brake overheating). Enter DIAG STEERING
2(16) in the diagnostic menu to verify the code
or enable the information type codes in the Ini-
tialization menu.
1. Test circuit. Place a jumper
wire at connector X156
between pins 2 and 3 on the
mounted part of the connector.
DO NOT disconnect X156.
This will activate the brake
cooling circuit.
2. Check voltage (24V) at X156 a. If no voltage (24V) is found,
move the cab to the transport
position to access X168 under
the cover plate. Disconnect
X168 pin 4 wire BU and
recheck.
b. If voltage is still not found,
disconnect X156 and check
c. Replace grounded X156 to
X168 cable (WP 0113 00).
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