TM 10-3930-675-24-1
ENGINE BATTERY VOLTAGE CIRCUITS TROUBLESHOOTING - CONTINUED
0025 00
Table 4. Error Code 1474 - Starter Solenoid Lockout
Relay Driver Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Driver Circuit Failure.
Use test lead, male - part number 3822758 (Item 122,
3822917 (Item 124, WP 0289 00-14) to test the OEM
harness connector.
1. Inspect the 31 pin OEM a. Clean and repair connector as
required (WP 0113 00).
harness connector and pins for
damage, dirt, or corrosion. b. Replace damaged ECU (794)
(WP 0079 00).
Remove the engine cover (WP
0148 00). Disconnect the 31
pin OEM harness connector
from engine harness (WP 0079
00).
2. Check for voltage. Disconnect If voltage (22V to 26V) is not
the 31 pin OEM harness found, continue with step 3.
connector. Turn the ignition
ON and check for voltage
(22V-26V) at the loose part of
the 31 pin OEM connector
harness at pin 20 (WP 0048 00-
10).
3. Inspect connector X16 for Repair or replace damaged
damage. Access the cab connector (WP 0113 00).
distribution box in the panel
behind the operators seat. Pull
the 31 pin OEM harness
connector (WP 0048 00-31).
4. Check continuity and for
If continuity is not found or
continuity to ground of wire
continuity to ground is found,
161 between X16 and the 31
notify Sustainment Maintenance
pin OEM harness connector
to replace engine and
(WP 0048 00-31).
transmission wiring harness.
0025 00-5
