Electronic control unit repair GM 6T30 6T40 6T45 / error P07BF - low signal level in the turbine (torque converter) speed sensor circuit “A”

Error P07BF - low signal level in the turbine (torque converter) rotation speed sensor circuit “A” is associated with failure of the components of the transmission control unit.

There could be a lot of reasons for this. Let's consider the main ones:

1. Resource. All transmission components have a service life assigned by the manufacturer.
2. Problems with the general electrical system of the car. Voltage surges, short circuits, etc.
3. Operation mode. Modes of use directly depend on the durability of transmission components.
4. Overheat. Transmission fluid performs the function of lubricating and cooling transmission components, including the electronic unit. Overheating causes the TCM chips to fail.

"Symptoms" of error P07BF:

• Excellent transmission performance when cold.
• The transmission goes into emergency mode when the ATF heats up to operating temperature.
• When diagnosing with diagnostic equipment, we receive error code P07BF - low signal level in the turbine (torque converter) rotation speed sensor circuit “A”.

The solution to the problem is to repair the electronic unit and replace faulty microcircuits

Repair solves the error problem:

P071D Trans Mode Switch B Signal
P0722 Output Speed Sensor Circuit No Signal
P0723 Output Speed Sensor Circuit Intermittent

The cost of repairing the electronic unit is $250.
For consultation and to make an appointment for diagnostics, please call:

Kiev

Technical center Libidsky

+38 050 5272236  

+38 067 5272236

+38 073 5272236

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