OBD Guide

P236A

Cylinder 12 Pressure Sensor Circuit Intermittent/Erratic

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Loss of engine power
  • Increased fuel consumption
  • Unstable engine operation
  • Check Engine light comes on
  • The engine may go into emergency mode

Causes

  • Damage to the wiring to the cylinder 12 pressure sensor
  • Malfunction of the pressure sensor itself
  • Poor contact in the sensor connector
  • Short circuit in the sensor circuit
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the wiring to the pressure sensor of cylinder 12
  2. Inspect the sensor connector for oxidation or damage.
  3. Check the resistance and signal of the pressure sensor
  4. Replace pressure sensor if necessary
  5. Check the operation of the engine control unit

Related codes

Error P236A by Vehicle Brand