Manual Toyota Fujitsu Ten 86120 Wiring Diagram -
| Symptom | Likely Cause | Solution | | :--- | :--- | :--- | | | The "Remote Turn-On" wire (typically Blue/White) is not connected. | Find the Amp Remote pin in your diagram and connect it to the aftermarket unit's remote wire. | | Radio works, but screen doesn't dim with headlights | Illumination wire disconnected. | Double-check the Green (+) wire connection to the car's illumination harness. | | Sound quality is "tinny" or bass is missing | Speaker wires connected with reversed polarity. | Swap the (+) and (-) wires on the affected speaker channel. | | Constant "Blowing Fuse" | The constant 12V (Battery) wire is touching the chassis ground. | Recheck your splices; ensure no stray copper wire is exposed. | | Blown Fuse | A short circuit exists in your connections. | Unplug the unit; if the fuse holds, the short is in your harness. Disassemble, re-strip, and re-crimp all wires. |
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+-------------------------------------------------------+ | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10| +-------------------------------------------------------+ | 11| 12| 13| 14| 15| 16| 17| 18| 19| 20| +-------------------------------------------------------+ Use code with caution. | Symptom | Likely Cause | Solution |
| Speaker Location | Positive (+) Wire | Negative (-) Wire | | :--- | :--- | :--- | | | White | White / Black Stripe | | Front Right | Gray | Gray / Black Stripe | | Rear Left | Green | Green / Black Stripe | | Rear Right | Purple (Violet) | Purple / Black Stripe | | Double-check the Green (+) wire connection to
Check the speakers' positive and negative wires for continuity. Tips for Working with Toyota Wiring
Most Fujitsu Ten 86120 units utilize standard 10-pin and 6-pin power/speaker connectors. Yellow: Constant 12V+ Battery. Red: Switched 12V+ Accessory (ACC). Black: Ground (Chassis). Gray: Front Right Speaker (+). Violet: Front Right Speaker (-). White: Front Left Speaker (+). Blue: Front Left Speaker (-). 6-Pin Connector (Rear Speakers): Red: Rear Right Speaker (+). White: Rear Right Speaker (-). Black: Rear Left Speaker (+). Yellow: Rear Left Speaker (-). Manual & Schematic Resources