TM 10-3930-675-24-1
INPUT AND OUTPUT SIGNALS FOR STEERING ECU (792) TROUBLESHOOTING - CONTINUED
0017 00
Short Circuit Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 404 - 2WD Steering Control Lamp, 4. Check for continuity to ground a. If continuity to ground is
Short Circuit Failure - Continued.
on the loose part of X153 at pin
found, replace the X153 to
1 (WP 0048 00-19). There
steering column harness (WP
should not be continuity to
0073 00).
ground.
b. If continuity to ground is not
found, check wire A1771 for
continuity to ground (WP
0048 00-19).
c. Replace
grounded
wire
A1771.
5. Check ECU (792) pin 68 for a. Replace damaged ECU (792)
connection or damage (WP
terminal board (WP 0080 00).
0048 00-19).
b. Replace ECU (792) (WP 0080
00).
Lamp, Short Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Error Code 405 - 4WD Steering Control Lamp,
Short Circuit Failure.
Error code 405 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 4-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 4-wheel
drive selection button. Pull the
light socket down and out from
the console.
0017 00-6
