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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (On-Board Diagnostic [Engine Controls MZI 3.7] (2 Of 5)) >> DTC P0131:00, P0151:00 >> Notes

DTC P0131:00, P0151:00: Notes

WARNING: This page is about a different variant/trim than selected.
DTC P0131:00 P0131:00: A/F sensor (RH) low voltage
DTC P0151:00 P0151:00: A/F sensor (LH) low voltage
DETECTION CONDITION 
  • P0131:00 indicates A/F sensor (RH) low voltage
  • P0151:00 indicates A/F sensor (LH) low voltage
  • The PCM monitors the A/F sensor for a circuit concern. This DTC sets when the PCM detects a concern with one of the circuits used to determine the oxygen content in the exhaust gas.
POSSIBLE CAUSE 
  • A/F sensor malfunction
  • Connector or terminal malfunction
  • P0131:00:
    • Short to ground in wiring harness between the following terminals:
      • A/F sensor (RH) terminal F-PCM terminal 2AG
      • A/F sensor (RH) terminal H-PCM terminal 2AC
    • Open circuit in wiring harness between the following terminals:
      • A/F sensor (RH) terminal F-PCM terminal 2AG
      • A/F sensor (RH) terminal H-PCM terminal 2AC
  • P0151:00:
    • Short to ground in wiring harness between the following terminals:
      • A/F sensor (LH) terminal F-PCM terminal 2AK
      • A/F sensor (LH) terminal H-PCM terminal 2AE
    • Open circuit in wiring harness between the following terminals:
      • A/F sensor (LH) terminal F-PCM terminal 2AK
      • A/F sensor (LH) terminal H-PCM terminal 2AE
  • PCM malfunction
G08140109Courtesy of MAZDA MOTORS CORP.
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