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AutoCodes - Generic - P033C

P033C Code - Knock Sensor 4 Circuit Low Bank 2

- Code Popularity: 4,221 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P033C?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Knock Sensor 4 Bank 2
  • Knock Sensor 4 Bank 2 circuit poor electrical connection
  • Knock Sensor 4 Bank 2 harness is open or shorted
  • Faulty Engine Control Module (ECM)
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How to Fix the DTC P033C?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P033C code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P033C Description

The Knock Sensor (KS) senses engine knocking (also known as detonation or pinging) using a piezoelectric element. The sensor is attached to the cylinder block, cylinder head or intake manifold. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the Engine Control Module (ECM). The ECM uses this signal to retard the ignition timing and protect the engine from this damaging pre-ignition.

OBDII Code P033C - Knock Sensor 4 Circuit Low Bank 2 - AutoCodes.com
P033C Code - Knock Sensor 4 Circuit Low Bank 2

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Code P033C comments

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