Description
Engine Control Unit
Not limited to these part numbers, however, include
89661-26161
175800-1460
Toyota 1KZ ECU Repair Service
Common Overdrive & Starting Faults
This is a repair service for Toyota 1KZ engine ECUs, which are known to fail with issues such as:
Overdrive not engaging or Intermittent or complete no-start conditions
These failures are typically caused by aged or leaking electrolytic capacitors, which damage the PCB over time.
Our Repair Process Includes:
Chemical removal of conformal coating using a controlled hot bath
Desoldering and replacement of all electrolytic capacitors with equal or higher-spec components
Track repair and restoration where corrosion or leakage has caused damage
Re-coating the ECU with a clear, protective conformal layer
Oven-bake curing; for long-term durability
Full reassembly and bench testing
This process restores the ECU’s reliability and avoids the cost and complexity of replacement or reprogramming.
#26022
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