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P0354 Diagnostic Trouble Code Discussion for August 2010

Ignition Coil 4 Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0354
Help Request Posted
2004 Toyota Tundra SR5 4.7L Poor Idle Quality, Hesitation, MIL Lamp on, No Power VIN: 5TBDT44164
P0354: Ignition Coil 4 Primary/Secondary Circuit Malfunction. This truck came from another shop with symptoms of low power and rough idle with Engine Light on. Plugs are new and clean. After pulling the codes listed, I checked the circuit diagram and found that coils 1, 4, 6, 7 all are on a common circuit which carries t...
August 23, 2010