TM 10-3930-675-20-1
0021 00-7
ENGINE AMBIENT AIR PRESSURE SENSOR AND CIRCUITS TROUBLESHOOTING - CONTINUED
0021 00
Table 2. Error Code 1222 - Low Voltage Detected at Ambient Air Pressure Sensor Circuit
Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1222 - Low Voltage Detected at
Ambient Air Pressure Sensor Circuit -
Continued
5. Disconnect sensor harness
connector from ECU and
place ignition switch in ON
position. Measure voltage at
ECU sensor port from pin 17
to pin 31 of ECU sensor port.
Voltage should be 4.75-
5.25V.
If voltage is not as specified,
proceed with the following
steps.
4.75-5.25V
USE TEST LEAD
KIT P/N 3822917
