TM 10-3930-675-24-1
INPUT AND OUTPUT SIGNALS FOR STEERING ECU (792) TROUBLESHOOTING - CONTINUED
0017 00
Table 12. Error Code
405 - 4WD
Steering Control
Lamp, Short Circuit Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 405 - 4WD Steering Control Lamp,
3. Check
for
continuity. a. If continuity to ground is
Short Circuit Failure - Continued.
Disconnect connector X177
found, disconnect X153 and
located in the middle panel.
recheck.
Check for continuity to ground b. If continuity to ground is still
on the loose part of X177 at pin
found, check wires 1602 and
A1532 for continuity to
should not be continuity to
ground.
c. Replace grounded X177 to
X160 cable or grounded wire
A1532.
4. Check for continuity to ground a. If continuity to ground is
on the loose part of X153 at pin
found, replace the X153 to
steering column harness (WP
should not be continuity to
0073 00).
ground.
b. If continuity to ground is not
found, check wire A1772 for
c. Replace
grounded
wire
A1772.
5. Check ECU (792) pin 67 for a. Replace damaged ECU (792)
terminal board (WP 0080 00
00).
b. Replace ECU (792) (WP 0080
00).
0017 00-7