| DTC Data Sheet | |
| System | Powertrain |
| Standard | SAE J2012 / ISO 15031-6 |
| Fault type | Circuit Low |
| Official meaning | Camshaft Position Sensor "A" Circuit Low Input (Bank 2) |
Bank 2 CMP signal voltage is below the minimum threshold — open signal, short to ground, or failed sensor.
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P0347 Quick Answer
Bank 2 CMP signal voltage is below the minimum threshold — open signal, short to ground, or failed sensor.
What Does P0347 Mean?
Camshaft Position Sensor "A" Circuit Low Input (Bank 2). Bank 2 CMP signal voltage is below the minimum threshold — open signal, short to ground, or failed sensor.
Symptoms
- Hard start or no-start
- Bank 2 misfires
- Stalling
Common Causes
- Open bank 2 CMP signal wire
- Short to ground
- Failed bank 2 CMP sensor
- Connector corrosion
Diagnosis Steps
You’ll need a scan tool capable of reading live powertrain data, a digital multimeter, and access to the wiring diagram for the specific platform.
- Verify supply and ground at the bank 2 CMP connector.
- Continuity-test the signal wire to the PCM.
- Resistance-check the sensor.
Possible Fixes
- Replace bank 2 CMP
- Repair signal-circuit wiring
Can I Still Drive With P0347?
The vehicle will usually still drive with P0347 stored, but performance, drivability, or emissions will be degraded. The PCM may inhibit emissions monitors and limit closed-loop fueling adjustments. Drive to a workshop, but don’t ignore the code long-term.
How Serious Is This Code?
P0347 is a moderate-priority fault. It will not prevent the engine from running, but unaddressed it can cascade into related faults or damage downstream components such as the catalytic converter. Address within a few drive cycles.
FAQ
Will P0347 clear itself?
Only if the underlying fault was intermittent and self-corrected. Most root causes are persistent and require physical repair.
Can I clear P0347 without fixing it?
You can clear it with a scan tool, but it will return as soon as the fault condition reappears — typically within one or two drive cycles.
Is P0347 related to other codes?
Often, yes. Adjacent codes in the same circuit or system frequently set together — if P0347 is present, scan for related codes and address them as a group.