TM 10-3930-675-24-1
INPUT AND OUTPUT SIGNALS FOR STEERING ECU (792) TROUBLESHOOTING - CONTINUED
0017 00
Table 10. Error Code
401 -
Transmission Neutral Signal from
Steering ECU (792) Short Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 401 - Transmission Neutral Signal Check for continuity to
ground on If
continuity is present,
replace
from Steering ECU (792) Short Circuit Failure. wire A79344 between steering
wire A79344.
16) and transmission ECU (793)
Table 11. Error Code
404 - 2WD
Steering Control Lamp,
Short Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Error Code 404 - 2WD Steering Control Lamp,
Short Circuit Failure.
Error code 404 is an information type error
code. It may not activate for the operator. The
operator may report the indicator light is not
working. Enter DIAG STEERING 2(16) in the
Diagnostic menu to verify the code or enable
the information type code in the Initialization
menu.
1. Inspect the 2-wheel drive Replace damaged steering
selection switch for damage.
selection switch (WP 0073 00).
2. Inspect light bulb. Remove the Replace damaged or shorted light
screws from the menu bulb (WP 0073 00).
selection button panel on the
steering column console. Lift
the panel to access the 2-wheel
drive selection button. Pull the
light socket down and out from
the console. Remove the light
bulb and inspect (WP 0073
00).
3. Disconnect connector X177 a. If continuity to ground is
located in the middle panel.
found, disconnect X153 and
Should not have continuity to
recheck.
ground. Check for continuity b. If continuity to ground is still
to ground on the loose part of
found, check wires 1601 and
A1531 for continuity to
19).
c. Replace grounded X177 to
X160 cable or grounded wire
A1531.
0017 00-5