DTC P1340: IGNITOR Circuit Malfunction: Notes
NOTE:
If DTCs P1300, P1315, P1325 and P1330 are output simultaneously, an open or short in IGF1 circuit may exist. If DTCs P1305, P1310, P1320 and P1340 are output simultaneously, an open or short in IGF2 circuit may exist.
CAUTION:
If ECM replacement is instructed in following testing, always ensure ECM connectors and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction.