Toyota 3-Pin Camshaft Position Sensor Connector – OEM 6189-1129 / 90980-12719
Direct OEM-specification replacement for the Toyota 3-pin camshaft position sensor (CMP) connector. Cross-references OEM part numbers 6189-1129, 6188-4920, 6189-1130, 90980-12719, and 90980-12353. Available bare or with 15cm pre-wired leads for direct splice-in installation.
| OEM Number | Type |
|---|---|
| 90980-12719 | Toyota connector assembly |
| 90980-12353 | Toyota connector assembly (alternate) |
| 6189-1129 | Sumitomo connector housing |
| 6188-4920 | Sumitomo connector housing (alternate) |
| 6189-1130 | Sumitomo connector housing (alternate) |
| Pin | Function | Failure Symptom if Corroded |
|---|---|---|
| 1 | +5V reference voltage from ECU | P0340 / P0345 — no signal to ECU |
| 2 | Signal ground | Erratic cam signal, P0341 / P0346 |
| 3 | CMP signal output to ECU | P0340–P0349, hard start, stall |
| Attribute | Detail |
|---|---|
| Pin Count | 3-Pin |
| OEM Part Numbers | 90980-12719 / 6189-1129 / 6188-4920 / 90980-12353 |
| Housing Material | Nylon (PA66) |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | Camshaft position sensor harness |
| Compatible Brands | Toyota, Lexus |
| Code | Description |
|---|---|
| P0340 | Camshaft position sensor A — circuit malfunction (Bank 1) |
| P0341 | Camshaft position sensor A — range/performance (Bank 1) |
| P0345 | Camshaft position sensor A — circuit malfunction (Bank 2) |
| P0346 | Camshaft position sensor A — range/performance (Bank 2) |
| P0349 | Camshaft position sensor A — circuit intermittent (Bank 2) |
The camshaft position sensor is mounted on the cylinder head, in direct contact with engine heat and oil vapour. On Toyota 1ZZ, 2AZ, 2GR, and 1GR engines, the CMP sensor connector is exposed to oil mist from the valve cover area. Oil contamination degrades the connector housing seal and accelerates terminal oxidation on the 5V reference and signal pins. A corroded Pin 1 (5V reference) causes the ECU to log P0340/P0345 immediately — the ECU cannot distinguish between a failed sensor and a failed connector without physical inspection. Always inspect and replace the connector before condemning the CMP sensor itself.
Q: My Toyota has P0340 but the sensor tests good — what’s wrong?
A: P0340 is a circuit fault code, not a sensor failure code. It means the ECU is not receiving a valid signal — which can be caused by a corroded connector, broken wire, or failed sensor. Inspect the 3-pin connector for corrosion on Pin 1 (5V reference) and Pin 3 (signal) before replacing the sensor.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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3 Pin Connectors
