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Home >> Toyota >> 2014 >> FJ Cruiser 4WD, Part Time T/Case Control >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0657-P2119)) >> SFI System >> DTC P144C: Open in Secondary Air Injection System Heater Control Circuit; DTC P144D: Short in Secondary Air Injection System Heater Control Circuit [08/2013 - ] >> Description
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DTC P144C: Open in Secondary Air Injection System Heater Control Circuit; DTC P144D: Short in Secondary Air Injection System Heater Control Circuit [08/2013 - ]: Description

The ECM operates the air pump heater relay (AIR PMP HTR) which causes the air pump heater (AIR PMP HTR) to operate.

DTC No. DTC Detection Condition Trouble Area
P144C Open or short in the air pump heater relay (AIR PMP HTR) circuit for 5 seconds (1 trip detection logic).
  • Open or short in air pump heater relay (AIR PMP HTR) circuit
  • Air pump heater relay (AIR PMP HTR)
  • ECM
P144D Open or short in the air pump heater relay (AIR PMP HTR) circuit for 5 seconds (1 trip detection logic).
  • Open or short in air pump heater relay (AIR PMP HTR) circuit
  • Air pump heater relay (AIR PMP HTR)
  • ECM