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P0748 ISUZU - Faulty Transmission Pressure Control Solenoid

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Possible causes
- Faulty line pressure solenoid valve
- Line pressure solenoid valve harness is open or shorted
- Line pressure solenoid valve circuit poor electrical connection
- Low transmission fluid level
- Dirty transmission fluid
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When is the code detected?
Engine Control Module (ECM) detectes an open or shorted condition on the solenoid circuit
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission shift shock
P0748 ISUZU Description
The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).
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Engine Light ON?

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