TM 10-3930-675-20-1
0022 00-2
ENGINE PRESSURE SENSOR TROUBLESHOOTING - CONTINUED
0022 00
Table 1. Error Code 1122 - Intake Manifold Pressure Sensor Circuit Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1122 - Intake Manifold Pressure
Sensor Circuit Failure - Continued
5. Check
intake
manifold
pressure
sensor
supply
voltage.
Check
voltage
between lead A and B of
breakout
cable.
Voltage
should be 4.75-5.25V. If
voltage is not as specified,
perform the following steps:
a. Disconnect all pressure and
temperature sensors from
sensor harness. Disconnect
coolant level sensor jumper
wires no. 5 and 6 from 31-
pin OEM connector. Place
ignition switch to ON
position. Install breakout
cable but do not connect to
sensor.
b. Check intake manifold
pressure sensor supply
voltage. Check voltage
between lead A and B of
breakout cable. Voltage
should be 4.75-5.25V.
If voltage is as specified, replace
intake manifold pressure sensor
(WP 0093 00).
A
B
C
4.75-5.25V
