Edmunds Answers

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  • 0patience 02/04/10 12:39 am PST

    Ignore the P0700, it is just telling you that there is the P0841 fault.
    Unfortunately, the problem isn't as easy as just diagnosing it.
    I would recommend getting the AlldataDIY subscription for your truck.
    It will give you the fault code diagnostics, with diagrams.
    But a scanner will be needed that will access the transmission parameters.
    You might call a local shop and see if they can diagnose the problem.
    Sorry, but there isn't a lot of options, unless you can get the truck to Anchorage.

    P0700-TRANSMISSION CONTROL SYSTEM (MIL REQUEST)
    WHEN MONITORED
    Ignition on and battery voltage greater than 10 volts .
    SET CONDITION
    An active DTC is stored in the TCM. One Trip Fault. Three good trips to turn off the MIL.
    POSSIBLE CAUSES
    DTC present in the transmission control module

    P0841-LR PRESSURE SWITCH RATIONALITY
    Possible Causes
    LOSS OF PRIME AND/OR TRANSMISSION CONTROL RELAY DTC PRESENT
    LOW FLUID LEVEL
    LOW LINE PRESSURE
    REVERSE CARRIER SNAP RING DISLODGED
    CRACKED OR MIS-INSTALLED PRIMARY OIL FILTER OR FILTER SEAL
    STICKING MAIN REGULATOR VALVE IN PUMP VALVE BODY
    NO. 1 CHECK BALL CUT OR DAMAGED
    WIRING AND CONNECTORS
    (T50) LR PRESSURE SWITCH SENSE CIRCUIT OPEN
    (T50) LR PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
    (T50) LR PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
    TRANSMISSION SOLENOID/TRS ASSEMBLY
    POWERTRAIN CONTROL MODULE

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