TM 10-3930-675-24-1
STEERING VALVE CIRCUIT TROUBLESHOOTING - CONTINUED
0033 00
Threshold [1,450 psi (100 Bar)] Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 340 - Hydraulic Steering Pressure
6. Check voltage (24V) at X197 a. If no voltage (24V) is found,
Below Threshold [1,450 psi (100 Bar)] -
pin 3 with the ignition ON.
check circuit beaker F29 and
Continued.
continuity of wires A473 (WP
A1743B (WP 0048 00-16 and
only).
b. If no voltage (24V) is found,
check circuit breaker F33 and
continuity of wires A475, 475,
and A174B1A (WP 0048 00-
18) (RESET and USMC only).
c. Replace damaged or faulty
circuit breaker (WP 0074 00).
d. Repair or replace damaged
wires or connectors (WP 0113
00).
7. Check voltage (24V) at X197 a. If no voltage (24V) is found,
pin 4 with the engine running.
check continuity of wires 1973
and 1974 (WP 0048 00-18).
b. Notify Sustainment
Maintenance to replace open
or damaged X197 harness.
8. Disconnect pressure switch a. If pressure switch (245) does
(245). Open the steering
not have continuity after
accumulator evacuation valve
engine start, replace pressure
and drain off the pressure (WP
switch (245) (WP 0134 00).
0164 00). Close the valve. b. If pressure switch (245) does
Check continuity between the
have continuity after engine
two pins of pressure switch
start, check continuity of wire
(245). There should not be
A1974 and condition and
continuity. Start the engine
connection at ECU (792) pin
(TM 10-3930-675-10) and
49.
recheck continuity after the
c. Repair or replace damaged
steering pressure stabilizes.
wires or connectors (WP 0113
There should be continuity.
00).
d. Replace damaged ECU (792)
terminal board (WP 0080 00).
0033 00-15
