DTC P1431: Vacuum Sensor Circuit Range/Performance: Notes

WARNING: Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS .

NOTE: If DTCs P1430, P1431, P0110, P0115, P0120 and P0121 are output simultaneously, the E2 sensor ground circuit at terminal No. 18 (Brown wire) at ECM connector E8 may be open. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. For ECM connector terminal identification, see Figure. It may be necessary to check Brown wire between splice I7 and terminal No. 18 at ECM connector E8. Splice I7 is located behind passenger's side of instrument panel, just above glove box door. See Figure.