TM 10-3930-675-24-1
INPUT AND OUTPUT SIGNALS FOR STEERING ECU (792) TROUBLESHOOTING - CONTINUED
0017 00
Switch, Circuit Input Error Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Error Code 427 - Tophandler Work Light Switch,
Circuit Input Error.
Error code 427 is an information type error code. It
may not activate for the operator. Enter DIAG STEER-
ING 2(16) in the Diagnostic menu to verify the code or
enable the information type codes in the initialization
menu. Input error type codes can be activated if the
voltage input is not stable due to a bad connection.
1. Inspect tophandler work light Replace damaged tophandler
switch for damage and work light switch (WP 0073 00).
connection.
2. Inspect connectors X174, X46, a. Repair or replace damaged
and X67 for connection or
connector (WP 0113 00).
damage.
b. If connectors are found to be in
good condition, check wires
679, A466 (WP 0048 00-46),
and 466 (WP 0048 00-18) for
c. Replace or repair open or
damaged wire (WP 0113 00).
3. Check ECU (792) pin 102 for a. Check wire A17411 for
continuity (WP 0048 00-18).
connection or damage (WP
b. Replace damaged ECU (792)
0048 00-18).
terminal board (WP 0080 00).
4. Check for wire connection.
Replace ECU (792) (WP 0080
Disconnect wire A17411 from
00) if error code 427 is still
ECU (792) and recheck for
active.
active 427 error code.
0017 00-21
