Mazda Automatic gearbox TCM module L39C189E Repair Service

Common Failure symptoms:

• Strong "kick" when switching automatic grip from position "P" to position "R"
• Indication on the dash "Check Engine"  , "AT" , "ABS" , "Slippery Road" (ESP)  etc.
• Gearbox does not go to "manual mode"
• The car goes in emergency mode only
• Check Engine light and AT lights are on
• Vehicle stays in 3rd gear only (safe mode)
• Hard "kick" on "drive" and "reverse"
• Hard shifting on gears

Typical OBD error codes:

• Error u0073 - control Module Communication Bus "A" is off (the e-Data bus control is disabled)
• Error U0100 - Lost Communication with ECM/PCM "a" error (data bus, engine control module (ECM) "A"-no link)
• Error u0101 - Lost Communication with TCM (data bus, transmission control module (TCM) - no link)
• Error p0715 - Input/Turbine Speed sensor "A" Circuit (the rotation frequency sensor of the input shaft of automatic gearbox (Hydrotransformer turbine)- Electrical circuit failure)
• Error P0720 - Output Speed sensor Circuit error (shaft rotation frequency sensor - fault of electrical circuit)
• Error p0744 - Torque Converter Clutch Circuit Intermittent (Electromagnetic valve coupling of a hydro transformer - unreliable pin of the electrical circuit)
• Error p0745 - Pressure control solenoid valve manifold "A" (Gearbox Electromagnetic fluid pressure control valve - electric circuit fault)
• Error p0748 - Pressure control solenoid valve manifold "A" Electrical Gearbox (electromagnetic pressure control valve - electrical malfunction)
• Error p0753 - Shift solenoid valve manifold "A" Electrical (Gearbox electromagnetic valve A - electrical malfunction)
• Error p0758 - Shift solenoid valve manifold "B" Electrical (Gearbox electromagnetic valve B in - electrical malfunction)
• Error p0763 - Shift solenoid valve manifold "C" Electrical (Gearbox electromagnetic valve C in - electrical malfunction)
• Error p0768 - Shift solenoid valve manifold "D" Electrical (Gearbox electromagnetic valve D - electrical malfunction)
• Error p0773 - Shift solenoid valve manifold "E" Electrical (Gearbox electromagnetic valve E in - electrical malfunction)
• Error p0778 - Pressure control solenoid valve manifold "B" electrical (electromagnetic valve B in pressure control - electrical malfunction)
• Error p0791 - Intermediate Shaft speed sensor "A" Circuit (intermediate shaft frequency sensor - failure of the electrical circuit)
• Error P0841 - Transmission Fluid Pressure sensor/Switch "A" error - Circuit Range/performance (sensor A of the pressure of the work fluid of gearbox - band/function)
• Error P0882 - TCM Power Input Signal Low (Gearbox electronic control module - low power supply voltage)
• Error P0883 - TCM Power Input Signal Low (Gearbox electronic control module - high power supply voltage)
• Error p0884 - TCM Power Input Signal Intermittent (Gearbox electronic control module (TCM), input power signal - unreliable pin of the electrical circuit)
• Error p2709 - Shift solenoid valve manifold "F" Electrical (electromagnetic valve F gear switches - electrical malfunction)

Common part numbers:

(Can't find the number? Don’t worry, we cover all part numbers for this instrument cluster)

How Does our repair service work?

1. Try to find on ecu-repair.eu your problem description using Menu or Search window.
2. Add to Click on "Buy it now", select shipping and pay for the service. 
3. Remove the module from the vehicle (try to find on youtube.com disassembling instruction) and make sure it is boxed and packaged well.
4. Print shipment label and call courier for pickup. After repair you will receive your repaired item.

Programming:

All original programming/coding remains intact during test and rebuild, simply plug and play when you receive it back.

Repair time:

We will need your unit for approximately 2 days + shipment to complete the full rebuild.

Warranty:

1 year unlimited mileage warranty