TM 10-3930-675-20-1
0016 00-10
INPUT AND OUTPUT SIGNALS FOR STEERING ECU (792) TROUBLESHOOTING - CONTINUED
0016 00
Table 15. Error Code 423 - Ether Start Kit Switch, Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 423 - Ether Start Kit Switch, Circuit
Failure
1. Check voltage at ether start
switch connector 124 pin 5,
located behind rocker switch
on instrument panel. Voltage
should be 22-26V.
If voltage is not as specified,
check wires 671A and 671 for
damage. Repair or replace
connectors (WP 0111 00).
2. Check voltage at ether start
switch connector 124 pin 1.
Voltage should be 22-26V
with switch activated and 0V
with switch not activated.
If voltage is not as specified,
replace ether start switch (WP
0072 00).
3. Check continuity between
ether start switch connector
124 pin 1 and connector X67
pin 4.
a. If continuity between pins,
repair or replace connectors
(WP 0111 00).
b. If
continuity
(short)
to
chassis, repair or replace
connectors (WP 0111 00).
c. If continuity is present, notify
SRA.
4. Check continuity between
connector X67 pin 4 and
connector X47 pin 9.
a. If continuity between pins,
repair or replace connectors
(WP 0111 00).
b. If
continuity
(short)
to
chassis, repair or replace
connectors (WP 0111 00).
c. If continuity is present, notify
SRA.
5. Check continuity between
connector X47 pin 9 and
connector X174 pin 15.
a. If continuity between pins,
repair or replace connectors
(WP 0111 00).
b. If
continuity
(short)
to
chassis, repair or replace
connectors (WP 0111 00).
c. If continuity is present, notify
SRA.
6. Check continuity between
connector X174 pin 15 and
steering ECU (792) connector
pin 42.
a. If continuity between pins,
repair or replace connectors
(WP 0111 00).
b. If
continuity
(short)
to
chassis, repair or replace
connectors (WP 0111 00).
c. If continuity is present, notify
SRA.