TM 10-3930-675-20-1
0023 00-4
ENGINE FUEL PRESSURE SENSORS AND CIRCUITS TROUBLESHOOTING - CONTINUED
0023 00
Table 2. Error Code 1581 - Fuel Inlet Restriction Sensor Circuit Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1581 - Fuel Inlet Restriction Sensor
Circuit Failure - Continued
2. Install breakout cable P/N
3824775 between sensor and
harness
connector.
Place
ignition
switch
in
ON
position.
3. Measure supply voltage at pin
1 or A (red) and pin 2 or B
(black). Voltage should be
4.75-5.25V.
a. If voltage is as specified,
repair or replace connectors
(WP 0111 00).
b. If engine harness requires
replacement, notify SRA.
c. If voltage is not as specified,
replace engine ECU (WP
0078 00).
4. Disconnect actuator harness
connector from engine ECU.
Turn ignition switch to ON
position and measure voltage
from engine ECU pin 29 to
pin 27 at actuator port of
ECU. Voltage should be 4.75-
5.25V.
a. If voltage is as specified,
repair or replace connectors
(WP 0111 00).
b. If engine harness requires
replacement, notify SRA.
c. If voltage is not as specified,
replace engine ECU (WP
0078 00).
4.75-5.25V
