P2728
Pressure Control Solenoid "E" Control Circuit Range/Performance
- Severity
- High
- Driving
- Drive only to a garage
The control circuit for pressure control solenoid "E" is electrically connected but the current drawn does not match what was commanded. A reading slightly outside tolerance is what produces this rather than an outright electrical fault.
Possible causes
- CommonDebris in the fluid jamming the solenoid
- CommonFailed solenoid
- CommonCorroded transmission case connector, or fluid wicking into it
- CommonLow or degraded fluid
- PossibleInternal transmission harness failure
- PossibleSticking valve in the valve body bore
What you might notice
- Very harsh or violent shifts
- Slipping under load
- Transmission stuck in one gear
- Delayed engagement into drive or reverse
- Check engine light on
What to check, in order
- Measure the solenoid resistance at the case connector against specification.
- Perform a voltage drop test on the circuit to find high resistance in the wiring.
- Check the fluid level and condition first. It is the cheapest check and it explains more transmission complaints than every electrical fault combined.
Read this code from your own car
Plug an ELM327 adapter into the OBD-II port under the dashboard. Pin16 reads every stored, pending and permanent code, explains each one like this page does — offline, with no account — and shows what the car recorded when the fault was set.
Where this code sits
P00xxP01xxP02xxP03xxP04xxP05xxP06xxP07xxP08xxP09xxP0AxxP0BxxP0CxxP0DxxP0ExxP0FxxP10xxP11xxP12xxP13xxP14xxP15xxP16xxP17xxP18xxP19xxP1AxxP1BxxP1CxxP1DxxP1ExxP1FxxP20xxP21xxP22xxP23xxP24xxP25xxP26xxP27xxP28xxP29xxP2AxxP2BxxP2CxxP2DxxP2ExxP2FxxP30xxP31xxP32xxP33xxP34xxP35xxP36xxP37xxP38xxP39xxP3AxxP3BxxP3CxxP3DxxP3ExxP3Fxx
Transmission
P2700P2701P2702P2703P2704P2705P2706P2707P2708P2709P2710P2711P2712P2713P2714P2715P2716P2717P2718P2719P2720P2721P2722P2723P2724P2725P2726P2727P2728P2729P2730P2731P2732P2733P2734P2735P2736P2737P2738P2739P2740P2741P2742P2743P2744P2745P2746P2747P2748P2749P2750P2751P2752P2753P2754P2755P2756P2757P2758P2759P2760P2761P2762P2763P2764P2765P2766P2767P2768P2769P2770P2771P2772P2773P2774P2775P2776P2777P2778P2779P2780P2781P2782P2783P2784P2785P2786P2787P2788P2789P2790P2791P2792P2793P2794P2795