Step 1: Check Transmission Fluid Level
* Make sure the transmission fluid level is within the required range. If the level is too low or too high, it can lead to emergency mode.
Step 2: Reset the Electronic Control Unit (ECU)
* Disconnect the negative terminal of the battery for 15-30 minutes.
* Connect the battery terminal and start the engine.
* Shift the gear selector to all positions and return to Park (P).
* Stop the engine.
Step 3: Clear trouble codes
*Connect the OBD2 scanner to the car.
* Clear any fault codes related to the transmission.
Step 4: Run diagnostics
*If resetting the ECU and clearing fault codes does not clear the limp mode, you will need to have the transmission diagnosed.
*Check:
* Wires and connectors for damage
* Speed and position sensors for faults
* Control solenoids for sticking or burnout
Step 5: Replace faulty parts
* If you find a faulty part, replace it with a new one.
* Clean or flush the gearbox if it is dirty or clogged.
Step 6: Check operation
* After replacing parts and/or cleaning the transmission, take it for a test drive to ensure that the limp mode has been removed.
* Shift gears in different modes and conditions to test the transmission for proper operation.
Important:
*If you feel uncomfortable performing these steps yourself, consult a qualified mechanic.
* Avoid driving the vehicle in limp mode as this may cause further damage.