The OBD code P0037 for Mitsubishi indicates a problem with the Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit.
Symptoms include the Engine Light being ON.
Common causes are a faulty sensor, fuse, wiring harness issues, or a faulty Engine Control Module (ECM).
This issue should be addressed promptly to prevent potential performance issues.
A possible fix involves inspecting and repairing any damaged components or wiring connections related to the sensor circuit.
| Repair Importance Level | 6.67 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 6.67 (Out of 10) |
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Symptoms of the Mitsubishi p0037 OBD Code
The vehicle may experience issues related to the oxygen sensor heater circuit malfunction (P0037).
- Symptoms: Engine Light ON.
- Possible decrease in engine performance.
- Vehicle may have poor fuel economy.
Causes of the Mitsubishi p0037 OBD Code
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P0037 in a Mitsubishi indicates an issue with the heated oxygen sensor heater control circuit low.
- P0037 can be caused by a Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2.
- A blown Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse.
- An open or shorted Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness.
- A poor electrical connection in the Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit.
- Or a Faulty Engine Control Module (ECM).
Fixing Mitsubishi Error Code p0037 Step By Step
Replace the faulty HO2S heater control circuit with a new one to address code P0037.
- To fix the Mitsubishi OBDII code p0037, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the oxygen sensor heater circuit.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If any issues are found, repair or replace the damaged wiring or connectors as necessary.
- Clear the fault code from the vehicle’s computer using a scan tool.
- Start the vehicle and ensure the code does not return.
- If the code persists, consider replacing the oxygen sensor itself, as a faulty sensor can trigger a p0037 fault code.
Cost Of Fixing Mitsubishi p0037 Fault Code
The repair for Mitsubishi P0037 involves diagnosing and replacing the HO2S heater control circuit low.
The cost to diagnose and fix a Mitsubishi OBD code P0037 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
The final cost depends on labor rates, shop fees, and any additional parts or repairs needed due to the complexity of the issue.
Details of the Mitsubishi p0037 OBD Code
Mitsubishi P0037 code indicates a malfunction in the heated oxygen sensor heater control circuit bank 1 sensor 2.
OBD code P0037 for Mitsubishi vehicles indicates a fault with the heated oxygen sensor heater control circuit low voltage for Bank 1 Sensor 2. This code is triggered by the Engine Control Module (ECM) when it detects a lower than normal voltage from the heater circuit of the downstream oxygen sensor located after the catalytic converter in Bank 1 of the engine.
The heated oxygen sensor (HO2S) is responsible for monitoring the oxygen content in the exhaust gases and providing feedback to the ECM for proper airfuel ratio control.
The heater circuit in the sensor helps it reach operating temperature quickly for accurate readings.
When the ECM detects a low voltage condition in the heater circuit, it sets the P0037 trouble code.
Mechanic’s Tech Notes
Detailed information on diagnosing and repairing fault code P0037 related to the heated oxygen sensor heater control circuit low.
OBDII code P0037 in a Mitsubishi typically indicates a fault with the heated oxygen sensor heater control circuit low in bank 1 sensor 2. To diagnose, use a multimeter to test the heater circuit resistance and voltage.
Check for continuity and proper voltage supply to the sensor.
Inspect the wiring harness and connectors for any damage or corrosion.
Ensure the sensor is receiving power and ground.
If all checks out, the issue may lie with the sensor itself.
Replace the sensor if necessary.
Clear the code and retest to confirm the repair.
FAQ
OBD code P0037 in a Mitsubishi means an issue with Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2. Check sensor, fuse, wiring for faults.
Common causes of OBD code P0037 in a Mitsubishi include a faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2, related fuse, wiring issues, or ECM problems.
Diagnose and fix OBD code P0037 in your Mitsubishi by checking the Bank 1 Sensor 2 oxygen sensor, fuse, wiring, and ECM for faults.
Wrap Up
If your Mitsubishi is displaying OBD code P0037, you may experience poor fuel economy, rough idling, or stalling.
This code typically indicates a malfunction in the heated oxygen sensor heater control circuit, caused by a faulty oxygen sensor, damaged wiring, or a poor electrical connection.
To address Mitsubishi OBD code P0037, start by inspecting the oxygen sensor’s wiring harness for any signs of damage or corrosion.
Test the sensor’s heater circuit for proper resistance and check the connector for a secure fit.
If necessary, replace the oxygen sensor to resolve the issue.
