DTC P0748: Notes
DTC P0748 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0748 |
Pressure control solenoid circuit malfunction (open circuit/short circuit) |
| DETECTION CONDITION |
- Open circuit or short circuit in pressure control solenoid signal system (while TCM monitors solenoid output voltage, the voltage that differs from the ON/OFF signal output by CPU in TCM is detected).
Diagnostic support note:
- This is a continuous monitor (CCM).
- MIL does not illuminate.
- PENDING CODE is not available.
- FREEZE FRAME DATA is not available.
- O/D OFF indicator light flashes.
- DTC is stored in TCM memory.
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| POSSIBLE CAUSE |
- Open circuit between pressure control solenoid terminal A and TCM terminal 2Y
- Short to ground between pressure control solenoid terminal A and TCM terminal 2Y
- Short to power between pressure control solenoid terminal A and TCM terminal 2Y
- Pressure control solenoid malfunction
- Damaged connector between pressure control solenoid valve and TCM
- TCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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