TM 5-3805-292-23
0006
ELECTRICAL TROUBLESHOOTING - LIFT AND TILT FUNCTIONS ARE DISABLED/EC011 HYDRAULIC
ENABLE (INTERLOCK) CIRCUIT TO LOADER INTERLOCK VALVE IS OPEN CONTINUED
P
Disconnect instrument panel (IP)
Check for continuity between door
switch connector 504-B, circuit
Perform Open Harness Test for circuits 303
Continuity
311MP (T), harness side and IP
NO
present?
and 311 (WP 0173).
connector C23-14, circuit 303E (T),
RH Console and Frame 24. Door
Harness).
YES
Disconnect loader solenoids (WP 0070).
Disconnect RH joystick connector 57B (WP
Check for continuity between door switch
connector 504-A, circuit 311LP (T), harness
Perform Open Harness Test for circuits
Continuity
NO
side and solenoid connector 57B-A, circuit
present?
303, 311, and 314 (WP 0173).
Miscellaneous Circuits and Frame 24. Door
Harness).
YES
Check for continuity between door
switch connector 504-A, circuit
311LP (T), harness side and solenoid
Perform Open Harness Test for circuits
Continuity
connector 103B-A, circuit 314M (T)
NO
present?
303, 311, and 314 (WP 0173).
Miscellaneous Circuits and Frame
24. Door Harness).
YES
Check for continuity between
solenoid connector 57B-B, circuit
Perform Open Harness Test for circuits
Continuity
78TX (B), harness side and ground
NO
present?
178TX and 178AM (WP 0173).
Circuits).
YES
Check for continuity between
solenoid connector 103B-B, circuit
Perform Open Harness Test for circuits
Continuity
178UX (B), harness side and ground
NO
present?
178NX and 178AN (WP 0173).
Circuits).
YES
Reconnect door switch and solenoids.
Replace loader valve solenoid(s)
