TM 10-3930-675-24-1
ENGINE PRESSURE SENSOR TROUBLESHOOTING - CONTINUED
0023 00
Table 2. Error Code 1123 - Intake Manifold Pressure
Sensor Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1123 - Intake Manifold Pressure 1. Ensure ignition switch is in
Sensor Circuit Failure.
OFF position. Disconnect
engine harness from intake
manifold pressure sensor (WP
0094 00).
2. Inspect engine harness and Clean and repair connector(s) as
sensor connector for dirty, required (WP 0113 00).
corroded,
bent,
broken,
pushed back, and extended
pins.
3. Check engine harness and
Remove dirt and moisture from
sensor connector for dirt or
connector. Replace missing or
damaged connector seals (WP
moisture in or on connector
0113 00).
and for missing or damaged
connector seals.
4. Install breakout cable. Place If voltage is not as specified,
ignition switch in ON proceed to the following steps.
position.
Check
intake
manifold pressure sensor
supply
voltage.
Check
voltage between lead A and B
of breakout cable. Voltage
should be 4.75 to 5.25V.
4.75-5.25V
C
A
B
0023 00-9
