P2838
Shift Fork B Position Circuit Low
P2838 is an OBD-II diagnostic trouble code meaning: Shift Fork B Position Circuit Low. Common causes: fork position sensor b malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $56–167.
Symptoms
- Incorrect gear shifting
- Difficulty shifting gears
- Transmission transition to emergency mode
- The Check Engine light comes on
- Reduced vehicle dynamics
Causes
- Fork position sensor B malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Wiring harness damage
- Transmission control module (TCM) malfunction
How to Fix
- Check the condition of the fork position sensor B
- Check the integrity of the sensor circuit for open circuit and short circuit
- Check the contacts in the sensor circuit connectors
- If necessary, replace fork position sensor B
- Check and, if necessary, replace the transmission control unit
Related codes
Error P2838 by Vehicle Brand
FAQ
What does the P2838 code mean?
P2838 is an OBD-II diagnostic trouble code that indicates: Shift Fork B Position Circuit Low
What causes a P2838 error code?
The most common causes of P2838 include: Fork position sensor B malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.
How do I fix a P2838 diagnostic trouble code?
To fix P2838: Check the condition of the fork position sensor B. Check the integrity of the sensor circuit for open circuit and short circuit. Check the contacts in the sensor circuit connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2838?
Yes, but get it checked soon
How much does it cost to fix P2838?
The estimated repair cost for P2838 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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