TM 10-3930-675-24-1
ENGINE ELECTRONIC CONTROL UNIT (ECU) (794) TROUBLESHOOTING - CONTINUED
0018 00
Table 5. Error Code 1443 - Low Voltage Detected at Throttle
Position Sensor Circuit Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Error Code 1443 - Low Voltage Detected at
Throttle Position Sensor Circuit.
Use test lead, female - part number 3823994 (Item 122,
WP 0289 00-21) to
test connector
X690. Use test lead,
male - part number 3822758 (Item 124, WP 0289 00-21)
to test the OEM harness connector.
1. Inspect the accelerator pedal Replace damaged accelerator
assembly for damage and pedal or connect disconnected
wiring harness connection wiring harness (WP 0062 00).
(WP 0062 00).
2. Check connector. Access the
cab distribution box in the
panel behind the operator's
seat. Pull the box out and
disconnect connector X23.
3. Inspect connector X23 for a. If resistance is not as specified,
damage. Check resistance on
continue with step 4.
the loose part of connector X23 b. Repair or replace damaged
between pins 4 and 5.
connector (WP 0113 00).
4. Check continuity on the loose If continuity to ground is found,
part of connector X23 between continue with step 5.
pin 3 and ground and pin 4 and
ground. There should not be
00-11).
5. Check
connector
wiring
harness. Remove the kick
panel from in front of the
steering column to access the
X690 connector on the
accelerator
pedal
wiring
harness.
0018 00-17