P2753
Transmission Fluid Cooler Control Circuit/Open
- Severity
- Medium
- Driving
- Drivable — book it in
An open circuit in the transmission fluid cooler control. Some transmissions can route fluid through or around the cooler, warming up faster in cold weather and cooling harder under load. With the control open, the fluid stays on whichever path the valve defaults to.
Possible causes
- CommonFailed fluid cooler control valve or its solenoid
- CommonCorroded connector or damaged wiring
- CommonBlocked or restricted fluid cooler
- PossibleBlown fuse on the circuit
- RareFailed control module driver
What you might notice
- Transmission running hot
- Transmission overheat warning
- Harsh shifting when hot
- Slow to warm up in cold weather
- Check engine light on
What to check, in order
- Check the cooler and its lines for blockage, leaks and external debris.
- Inspect the connector and wiring at the control valve.
- Measure the solenoid winding resistance against specification.
- Watch transmission fluid temperature on a normal drive - it should rise and then hold steady.
- 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