Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Fuse Block Internal Circuit Check
Disconnect negative battery cable. Disconnect and remove interior fuse block. Remove TCU from fuse block. Using a DVOM, check for continuity between specified TCU terminals and input/output terminals at appropriate fuse block connections. See FUSE BLOCK CONTINUITY CHECK table. Replace interior fuse block if continuity is not present between specified terminals.
| TCU Connector Terminal No. | Input/Output Connector Terminal | ||
|---|---|---|---|
| 1 | 14E | ||
| 2 | 5B | ||
| 3 | 12A | ||
| 4 | 0A | ||
| 5 | 38A | ||
| 6 | 1B | ||
| 9 | 3E | ||
| 9 | 58A | ||
| 9 | 60A | ||
| 10 | 28A | ||
| 12 | 83A | ||
| 13 | 82A | ||
| 14 | 84A | ||
| 15 | 24A | ||
| 16 | 2A | ||
| 17 | 81A | ||
| 18 | 4A | ||
| 19 | 3A | ||
| 20 | 11A | ||
|
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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