P0386
Crankshaft Position Sensor B Circuit Range/Performance
P0386 is an OBD-II diagnostic trouble code meaning: Crankshaft Position Sensor B Circuit Range/Performance. Common causes: wear of the teeth of the crankshaft drive disc, incorrect air gap between sensor and drive disc. Estimated repair cost: $22–89.
Symptoms
- Unstable idle
- Misfires
- Jerks when accelerating
- Power Loss
- Check Engine Light Is On
Causes
- Wear of the teeth of the crankshaft drive disc
- Incorrect air gap between sensor and drive disc
- Sensor clogged with metal shavings
- Electromagnetic interference in the sensor circuit
- Worn sensor with unstable characteristics
How to Fix
- Read codes, check for codes P0335–P0339 and P0387–P0388
- Inspect crankshaft sensor B and its connector
- Check and adjust the air gap (normal: 0.5–1.5 mm)
- Clean the sensor from metal particles
- Inspect the drive disc for tooth damage
- Replace the sensor if the fault is confirmed
Related codes
Error P0386 by Vehicle Brand
FAQ
What does the P0386 code mean?
P0386 is an OBD-II diagnostic trouble code that indicates: Crankshaft Position Sensor B Circuit Range/Performance
What causes a P0386 error code?
The most common causes of P0386 include: Wear of the teeth of the crankshaft drive disc; Incorrect air gap between sensor and drive disc; Sensor clogged with metal shavings; Electromagnetic interference in the sensor circuit.
How do I fix a P0386 diagnostic trouble code?
To fix P0386: Read codes, check for codes P0335–P0339 and P0387–P0388. Inspect crankshaft sensor B and its connector. Check and adjust the air gap (normal: 0.5–1.5 mm). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0386?
Do not drive — repair immediately
How much does it cost to fix P0386?
The estimated repair cost for P0386 is $22–89. Actual cost depends on your vehicle, location, and labor rates.
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