DTC P2507: Notes
DTC P2507 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P2507 |
PCM B+ voltage low |
| DETECTION CONDITION |
- The PCM monitors the voltage of back-up battery positive terminal. If the PCM detects battery positive terminal voltage below 2.5 V
for 2 s
, the PCM determines that the backup voltage circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
- PENDING CODE is available if PCM detects the above malfunction condition.
- FREEZE FRAME DATA is available.
- DTC is stored in PCM memory.
|
| POSSIBLE CAUSE |
- Melt down EEC fuse
- Open circuit in wiring between EEC fuse and PCM terminal 1BA
- Short to ground between EEC fuse and PCM terminal 1BA
- Poor connection of PCM connector
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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