The P2285: Injector Control Pressure Sensor Circuit Low refers to a situation where the voltage in the injector control pressure sensor circuit is lower than expected. This could be caused by a faulty sensor, issues with the wiring or connectors, or a general malfunction in the sensor circuit, which impacts the engine’s ability to manage fuel injection properly.
P2285 – Quick Overview
Code | Information |
---|---|
Meaning | P2285: Injector Control Pressure Sensor Circuit Low |
Is it serious? | Yes, as it can cause poor engine performance, starting issues, and improper fuel delivery, potentially leading to engine damage. |
Possible causes | – Low voltage in injector control pressure sensor circuit – Faulty sensor or wiring issues – Connector problems |
How to diagnose? | – Measure voltage in the injector control pressure sensor circuit – Test the sensor for proper operation – Inspect wiring and connectors for faults |
P2285 Meaning
The P2285: Injector Control Pressure Sensor Circuit Low code indicates that the voltage received from the injector control pressure sensor is below the expected range. This could result from a malfunctioning sensor, wiring issues, or problems with connectors, leading to incorrect pressure readings. Since the injector control pressure sensor is critical for fuel delivery, any discrepancy can negatively impact engine performance and efficiency.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to determine if there are additional codes that may indicate related issues with the fuel system or injector control circuits. | OBD-II Scanner |
Inspect the Injector Control Pressure Sensor | Visually inspect the sensor for any signs of physical damage, corrosion, or loose connections. Ensure it is properly mounted and in good condition. | Flashlight, Safety Gloves |
Measure Voltage in Sensor Circuit | Use a multimeter to measure the voltage in the injector control pressure sensor circuit. Compare the voltage readings with the manufacturer’s specifications. A low reading indicates a problem. | Multimeter |
Test the Sensor for Proper Operation | Use a diagnostic tool to monitor the output from the injector control pressure sensor. The readings should vary in response to changes in engine load and RPM. | Diagnostic Tool |
Inspect Wiring and Connectors | Examine the wiring and connectors leading to the injector control pressure sensor for signs of fraying, loose connections, or corrosion. Damaged wiring can cause low voltage. | Flashlight, Multimeter |
Verify Power Supply and Ground | Check that the sensor is receiving the correct power supply and has a good ground connection. Voltage at the sensor should meet manufacturer specifications. | Multimeter |
Look for Open Circuits or Shorts | Trace the wiring from the sensor to the ECU and inspect for open circuits or shorted wires that could lead to voltage drop or irregular signals. | Wiring Diagram, Multimeter |
Replace Faulty Sensor if Necessary | If the sensor is confirmed to be faulty or damaged, replace it with a new one. Ensure that the replacement sensor meets OEM specifications for proper compatibility. | Replacement Sensor, Hand Tools |
Clear the Code and Test Drive | After repairs, clear the code using an OBD-II scanner and take the vehicle for a test drive. Monitor engine performance to ensure that the sensor is functioning correctly. | OBD-II Scanner, Vehicle Owner’s Manual |
Recheck for Codes | After the test drive, re-scan the vehicle to verify that the P2285 code has not returned. If the code persists, further diagnostics may be necessary. | OBD-II Scanner |

OBD-II scanner Buyer’s Guide
- Scanner features explained
- Different types of scanners
- Scanners for coding/odometer/ECU/checks
- Best picks + discount codes

Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)