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DTC P2507.00: Notes

DTC P2507.00 (MZR 1.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P2507:00 PCM battery voltage low input
DETECTION CONDITION 
  • The PCM monitors the voltage of the backup battery positive terminal. If the PCM detects that the battery positive terminal voltage is 2.5 V or less for 5 s  , the PCM determines that the backup voltage 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)/Snapshot data is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Battery malfunction
  • PCM connector or terminals malfunction
  • Short to ground or open circuit in PCM power supply circuit
    • Short to ground in wiring harness between MAIN 200 A fuse and PCM terminal 1 BC
    • MAIN 200 A fuse and/or EGI 10 A fuse malfunction
    • Open circuit in wiring harness between battery positive terminal and PCM terminal 1 BC
  • PCM malfunction
G06940422
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