Toyota-specific code — factory diagnostic data| DTC Data Sheet | |
| Code | P0302 |
| Vehicle | 2014 Toyota Tacoma |
| System | SFI System |
| Fault type | Fault |
| Official meaning | Cylinder 2 Misfire Detected |
| Source | 2014 Toyota Tacoma factory diagnostic information |
Definition source: Toyota factory description. Diagnostic guidance is based on factory-defined fault logic for this code.
P0302 on the 2014 Toyota Tacoma means: Cylinder 2 Misfire Detected. It is a fault code reported by the SFI System.
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Looking for the cross-vehicle definition? Read the generic P0302 article for the SAE-defined fault logic that applies to all manufacturers.
P0302 Quick Answer
P0302 on a 2014 Toyota Tacoma indicates Cylinder 2 Misfire Detected. Start with a freeze-frame check and a careful inspection of the connector and wiring at the affected device before replacing any parts.
What Does P0302 Mean on a Toyota Tacoma?
On the 2014 Toyota Tacoma, the SFI System sets P0302 when it detects a fault matching its official definition: Cylinder 2 Misfire Detected. This is a manufacturer-specific definition from Toyota factory diagnostic data.
Symptoms
- Warning light for the affected system (check engine, ABS, airbag, or a system indicator depending on the module)
- Reduced or lost function of the sfi system
- Possible related codes from other modules on the Tacoma CAN/LIN network
Common Causes
- Fault in the component named in the definition (cylinder 2 misfire detected)
- Open, shorted, or high-resistance wiring in the affected circuit
- Connector corrosion, water ingress, or a backed-out terminal
- Loss of supply voltage or a poor ground at the device
- Module internal fault — confirm wiring and supplies before condemning the module
Diagnostic Approach
For P0302 on the 2014 Toyota Tacoma you’ll want an OBD-II scan tool with live-data and freeze-frame support (a Toyota Techstream-class tool reads enhanced data), plus a digital multimeter and the wiring diagram.
- Confirm the code is current, not stored history, and record freeze-frame data.
- Read all modules — related codes often pinpoint the root cause faster than the headline code.
- Inspect and wiggle-test the connector at the named device while watching live data.
- Measure supply voltage and ground integrity at the device; verify the circuit against the Tacoma wiring diagram.
- Substitute or isolate the suspect device only after wiring and supplies check out.
- Clear the code and road-test through one or two drive cycles to confirm the repair.
Possible Fixes
- Repair open/short/high-resistance wiring or a corroded connector
- Restore supply voltage or ground at the affected device
- Replace the failed component named in the definition
- Replace and, where required, initialise/program the module if it is internally faulty
Can I Still Drive With P0302?
It depends on the system. SFI System faults that affect braking, the airbag/restraint system, power steering, or stability control should be repaired before further driving. Comfort or convenience faults can usually be deferred briefly, but related codes can mask one another on the Tacoma network — diagnose promptly.
FAQ
Is P0302 specific to the Toyota Tacoma?
The definition here is taken from 2014 Toyota Tacoma factory diagnostic data. The same code may appear on other Toyota models, but the affected module and exact criteria can differ between platforms.
Can I clear P0302 without fixing it?
You can clear it, but if the underlying fault is still present the Tacoma will reset the code on the next drive cycle that runs the relevant monitor. Diagnose the cause first.
Will a generic OBD-II reader show P0302?
Most generic readers show powertrain (P) codes, but Toyota-enhanced data (e.g. a Techstream-class tool) gives the full freeze-frame and live data needed to diagnose it properly.
Source
Code definition from 2014 Toyota Tacoma factory diagnostic information (SFI System). Symptom, cause, and diagnosis guidance summarised from standard OBD-II diagnostic practice for this platform.