Toyota Repair: Engine computer problem, toyota tundra, engine computer

Question
Yesterday, my 2000 Toyota Tundra (4.7l V8) ran fine. Today it runs very rough. Mechanic replace spark plugs (it needed them) and ran diagnostics. Error codes P1305, P1310, P1320 and P1340 (all igniter bank errors). No signal from ECM is what I was told.

Answer
Those trouble codes are igniter circuit malfunctions for #2,3,5 and 8. Those coils are connected to the ECM with one wire, the wire is black/white, it's connected at the ECM at connector E7, terminal 28. Check continuity between terminal 28 and each of the coil packs at the black/white wire connection, if there is an open circuit it should be located and repaired, if the continuity from each coil to the ECM is good then the ECM has a malfuction.