4s-fe Ecu Pinout [top] Jun 2026
Electrical Load Signal System. Taillight Relay. AC2. Unknown. 12V To Aircon Computer. TE2. White-Blue. Check Connector. TE1. Gray. 4E-FE ECU Pinout and Wiring Guide | PDF | Throttle - Scribd
While specific wire colors can vary between car models (e.g., a Mark II vs. a Carina), the following terminal codes are standard for Toyota ECUs of this era: Full Name / Function Switched Power +12V power from the EFI Main Relay when the ignition is ON. BATT Constant Battery Power Permanent +12V used to keep the ECU memory (DTCs) alive. E1 / E01 Main Ground The primary computer and power grounds for the ECU. E2 / E21 Sensor Ground 4s-fe ecu pinout
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