DTC P2088 [LF]: Notes

DTC P2088 (LF) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2088	OCV circuit low input
DETECTION CONDITION	The PCM monitors the OCV voltage. If the PCM detects the OCV control voltage (calculated from the OCV is below the threshold voltage (calculated from the 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 Open circuit or short to ground in OCV power supply circuit Short to ground in wiring harness between main relay and OCV terminal B OCV power supply circuit related fuse malfunction Open circuit in wiring harness between main relay and OCV terminal B OCV malfunction Short to ground in wiring between OCV terminal A and PCM terminal 2E PCM connector or terminals malfunction Open circuit in wiring between OCV terminal A and PCM terminal 2E PCM malfunction
Courtesy of MAZDA MOTORS CORP.

DTC P2088

OCV circuit low input

DETECTION CONDITION

The PCM monitors the OCV voltage. If the PCM detects the OCV control voltage (calculated from the OCV is below the threshold voltage (calculated from the 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
Open circuit or short to ground in OCV power supply circuit
- Short to ground in wiring harness between main relay and OCV terminal B
- OCV power supply circuit related fuse malfunction
- Open circuit in wiring harness between main relay and OCV terminal B
OCV malfunction
Short to ground in wiring between OCV terminal A and PCM terminal 2E
PCM connector or terminals malfunction
Open circuit in wiring between OCV terminal A and PCM terminal 2E
PCM malfunction

Courtesy of MAZDA MOTORS CORP.