Toyota 89661 Ecu Pinout

a guaranteed replacement for all 1989 Toyota Truck PCM models with a 2.4L engine size and matching part number 89661-35150. Flagship One Inc

| Pin | Wire Color | Function | |-----|------------|----------| | A1 | B-Y | +12V Battery (BATT) | | A2 | B | Ground (E1) | | A3 | R-B | +12V IG SW (IGSW) | | B1 | G-R | Injector #1 | | C1 | W-B | Check Engine Light | | C5 | B-O | OBD-II (ISO 9141 K-Line) | toyota 89661 ecu pinout

| Connector | Typical Color | Common Circuits | |-----------|---------------|------------------| | A (22-pin) | Gray or White | Injectors, ignition coils, power, grounds | | B (22-pin) | Gray | Sensors (TPS, MAP/MAF, ECT, IAT, CKP, CMP) | | C (16-22 pin) | Black or Blue | Solenoids (VVT, EGR, purge), fuel pump relay, CEL | | D (if present) | Black | Immobilizer, diagnostics (K-Line, CAN low/high) | a guaranteed replacement for all 1989 Toyota Truck

Below are the most common pin abbreviations and terminal layouts used across the 89661 series: Common ECU Pin Abbreviations fuel pump relay

Categorize each pin as either a Power Feed (+B, BATT), Ground (E1, E2), Sensor Input (TPS, MAF), or Output Control (Injectors, Igniters). Resources for Full Diagrams Toyota ECU Pinout Guide 2015+ | PDF - Scribd