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P154B Diagnostic Trouble Code Discussion for June 2013

Intake Air (IA) Heater Signal Circuit Malfunction

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Trouble Ticket Help Requests for DTC P154B
Help Request Posted
2009 Chevrolet C5500 Kodiak C5C042 6.6L MIL Lamp on VIN: 1GBE5V1999
P154B: testing and results. ... there who might have run into this. Bus came in mil light on,code p0154b. Tested main feed to intake air heater with cable disconnect from heater with Snap On AVR with pos connected to cable, neg to neg battery, amp clamp around cable,could easily pull 125...
June 20, 2013