Toyota 9-Pin Torque Converter & Towing Control Connector – OEM 81985-35010 | Hilux Land Cruiser
Direct OEM-specification replacement for the Toyota 9-pin connector used on torque converter clutch (TCC) solenoid harnesses and towing control module interfaces. Cross-references OEM part number 81985-35010. Used in automatic transmission and towing control harnesses across Toyota 4WD and commercial vehicle platforms. Available bare or with 15cm pre-wired leads.
| Pin Group | Function | Failure Symptom if Corroded |
|---|---|---|
| Pins 1–2 | TCC solenoid power and ground | P0740 / P0741 — TCC circuit malfunction, shudder at cruise |
| Pins 3–4 | Transmission input speed sensor signal and reference | P0715 — input shaft speed sensor circuit |
| Pins 5–6 | Towing module power and ground | Towing mode not activating |
| Pins 7–8 | Towing control signal and CAN bus | Towing mode fault, U-code logged |
| Pin 9 | Diagnostic / feedback signal | TCM fault code logged |
| Attribute | Detail |
|---|---|
| Pin Count | 9-Pin |
| OEM Part Number | 81985-35010 |
| Housing Material | Nylon (PA66), waterproof sealed |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | Torque converter clutch solenoid harness, towing control module |
| Compatible Brands | Toyota |
| Code | Description |
|---|---|
| P0740 | Torque converter clutch circuit — malfunction |
| P0741 | Torque converter clutch circuit — performance or stuck off |
| P0715 | Input / turbine shaft speed sensor — circuit malfunction |
Q: My Toyota Hilux shudders at highway cruise speed and has P0741 — is it the connector?
A: P0741 (TCC stuck off) with a shudder at cruise speed on Toyota automatics is frequently caused by a corroded TCC solenoid connector rather than a failed solenoid or torque converter. Inspect the 9-pin connector before replacing the transmission solenoid pack.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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9 Pin Connectors
