2006 Honda CR-V 2.2 Diesel Fault Code P1236: Turbo Boost Sensor A Circuit High Explained
I recently received a fault code P1236 on my 2006 Honda CR-V 2.2 diesel model. Can anyone please explain what this error means and how it affects the vehicle's performance? I'm looking for accurate technical details to help diagnose and fix the issue.
Hello. Fault code P1236 indicates a 'Turbo Boost Sensor A Circuit High,' which typically means either a short to B+ or an open/poor negative connection in the circuit. Have you accessed any diagnostic scanner or EOBDII reader to check live data such as intake manifold pressure, boost pressure, or MAP (Manifold Absolute Pressure)? The turbo boost sensor has three pins: one for ground (negative), one for power (typically 5V or 12V), and one for the signal output. The signal voltage should range between 0.5 and 4.5 volts DC. Use a multimeter set to DC volts mode—do not use ohms setting—to measure this. Proper wiring and grounding are essential for accurate readings.