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DTC P2089 [LF]: Notes

DTC P2089 (LF) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2089 OCV circuit high input
DETECTION CONDITION 
  • The PCM monitors the OCV voltage. If the PCM detects that the OCV control voltage (calculated from the OCV) is above the threshold voltage (calculated from battery positive voltage), the PCM determines that the OCV circuit has a malfunction.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2/Mode 12) is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • OCV connector or terminals malfunction
  • OCV malfunction
  • PCM connector or terminals malfunction
  • Short to power supply in wiring harness between OCV terminal A and PCM terminal 2E
  • PCM malfunction
G06150001Courtesy of MAZDA MOTORS CORP.
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