P13C8
Knock Sensor 2 Electrical Signal Input B Short Circuit To Positive
P13C8 is an OBD-II diagnostic trouble code meaning: Knock Sensor 2 Electrical Signal Input B Short Circuit To Positive. Common causes: damage to knock sensor wiring, signal wire short circuit to +12v. Estimated repair cost: $28–78.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Detonation knocks during acceleration
- The engine goes into emergency mode
Causes
- Damage to knock sensor wiring
- Signal wire short circuit to +12V
- Malfunction of the knock sensor itself
- Problems with the sensor connector
- Short circuit inside the engine control unit
How to Fix
- Check the resistance and integrity of the knock sensor
- Inspect the wiring harness for damage
- Check the contact connections of the sensor connector
- Measure the voltage in the signal circuit
- If necessary, replace the knock sensor
Related codes
FAQ
What does the P13C8 code mean?
P13C8 is an OBD-II diagnostic trouble code that indicates: Knock Sensor 2 Electrical Signal Input B Short Circuit To Positive
What causes a P13C8 error code?
The most common causes of P13C8 include: Damage to knock sensor wiring; Signal wire short circuit to +12V; Malfunction of the knock sensor itself; Problems with the sensor connector.
How do I fix a P13C8 diagnostic trouble code?
To fix P13C8: Check the resistance and integrity of the knock sensor. Inspect the wiring harness for damage. Check the contact connections of the sensor connector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P13C8?
Limited driving only, diagnose soon
How much does it cost to fix P13C8?
The estimated repair cost for P13C8 is $28–78. Actual cost depends on your vehicle, location, and labor rates.
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