TM 10-3930-675-20-10021 00-7ENGINE AMBIENT AIR PRESSURE SENSOR AND CIRCUITS TROUBLESHOOTING - CONTINUED0021 00Table 2. Error Code 1222 - Low Voltage Detected at Ambient Air Pressure Sensor CircuitTroubleshooting Procedures - Continued.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONError Code 1222 - Low Voltage Detected atAmbient Air Pressure Sensor Circuit -Continued5. Disconnect sensor harnessconnector from ECU andplace ignition switch in ONposition. Measure voltage atECU sensor port from pin 17to pin 31 of ECU sensor port.Voltage should be 4.75-5.25V.If voltage is not as specified,proceed with the followingsteps.4.75-5.25VUSE TEST LEADKIT P/N 3822917
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