P0943 Code - Hydraulic Pressure Unit Cycling Period Too Short

Discussion in 'P - Powetrain Codes' started by fault code, Mar 31, 2018.

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    fault code Administrator Staff Member

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    What does P0943 Mean?

    The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue. When you see P0943 engine fault code on your engine code reader this description will help you.

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    What are the common causes of P0943 ?
    • Low transmission fluid level
    • Shift Lever Position
    • Plugged Transmission filter
    • Faulty Transmission Oil Pump
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    How do you troubleshoot P0943 ?

    If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition.

    Searches related to P0943 Code - Hydraulic Pressure Unit Cycling Period Too Short
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    • P0944
     

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