Toyota RAV4 ECU Repair Service (2001–2005)

Toyota RAV4 ECU Repair Service (2001–2005)
Fix Harsh Shifting & Transmission Issues – ECM / TCM Combined Module

This is a repair service for the Engine Control Module (ECM) on 2001–2005 Toyota RAV4 models (both 2WD and 4WD) that are experiencing harsh or erratic transmission shifting.

These models use a combined ECU/TCM unit that is prone to failure, often mimicking a faulty transmission, when in fact the issue is with the control module.

✅ Common Symptoms:

• Harsh or delayed shifting, especially into 3rd gear

• Erratic or unpredictable gear changes

• Slamming into reverse

• Feels like the car is braking by itself

• Clicking or rattling noises from the front of the vehicle

• Inconsistent behaviour—fine one day, failing the next

• Issues present only when hot or cold

• Sluggish takeoff from a stop

• Often no check engine light or codes, but when present:

  • P0750 / P0753 / P0755 / P0758 / P1760

🔧 Our Repair Service Includes:

• Full diagnostic testing of the ECM/TCM

• Replacement of known failing components

• Repair of internal track damage caused by heat stress

• Bench testing after repair to verify correct operation

In 99% of cases, these transmission-related issues are resolved without replacing or rebuilding the transmission—by simply repairing the ECM correctly.