Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is having trouble reading the pressure inside cylinder 11 of the engine. It might be like trying to read a book with smudged glasses.
This code indicates an issue with the electrical circuit connected to the pressure sensor for cylinder 11, which is responsible for measuring the pressure inside that specific cylinder.
The P235C code is triggered when the Engine Control Module (ECM) detects a malfunction in the pressure sensor circuit for cylinder 11. This sensor is crucial for monitoring the pressure in the cylinder and ensuring optimal engine performance.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty pressure sensor
• Damaged or corroded wiring/connectors
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the pressure sensor for proper operation.
• Replace the faulty pressure sensor.
• Repair or replace damaged wiring/connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly inspect and maintain engine components.
• Ensure proper electrical connections.
• Use high-quality fuel.
Sensor Issue
• Do not ignore the Check Engine Light.
• Get the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle if performance is severely affected.
Check with the vehicle manufacturer for warranty coverage on engine sensors.
This code is relatively uncommon and specific to vehicles with engines having more than 10 cylinders.
Moderate – Should be addressed soon to prevent further engine issues.
Ignoring this code may lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in a safe, controlled environment
The pressure sensor for cylinder 11 is typically located near the cylinder head on the engine block.
Q: Can I drive with a P235C code?
A: It's not recommended as it may lead to further engine damage.
Q: Will the Check Engine Light turn off after repairs?
A: Yes, once the issue is resolved, the light should turn off after a few drive cycles.
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