AutoCodes – Jeep – P0237 Jeep

P0237 Jeep Code - MAP Sensor Too High Too Long

Quick Answer

The Manifold Air Pressure (MAP) sensor voltage is monitored when the engine speed is more than 416 RPM, but less than 3520 RPM and battery voltage is more than 10.4 volts. Common causes include Faulty Manifold Air Pressure (MAP) sensor, Manifold Air Pressure sensor harness is open or shorted, Manifold Air Pressure sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0237 Jeep indicates MAP Sensor Too High Too Long.
Common causes: Common causes include Faulty Manifold Air Pressure (MAP) sensor, Manifold Air Pressure sensor harness is open or shorted, Manifold Air Pressure sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 5,315

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0237 Jeep Description

The Manifold Air Pressure (MAP) sensor voltage is monitored when the engine speed is more than 416 RPM, but less than 3520 RPM and battery voltage is more than 10.4 volts. The Diagnostic Trouble Code (DTC) may be stored if the Engine Control Module (ECM) senses MAP sensor signal voltage is less than .1 volt for 2 seconds with the engine running.

OBDII Code P0237 Jeep - MAP Sensor Too High Too Long - AutoCodes.com — P0237 Jeep Code - MAP Sensor Too High Too Long

What does this mean?

What are the Possible Causes of the DTC P0237 Jeep?

Faulty Manifold Air Pressure (MAP) sensor
Manifold Air Pressure sensor harness is open or shorted
Manifold Air Pressure sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0237 Jeep?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0237 Jeep code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0237 Jeep code?

Need more information on how to fix the P0237 Jeep code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0237 Jeep Code

1. What does the OBDII code P0237 mean for a Jeep?

P0237 indicates an issue with the turbocharger or supercharger boost sensor (MAP sensor), specifically that its voltage signal is too low, suggesting a possible malfunction.

2. What are common symptoms of code P0237 on a Jeep?

Symptoms may include reduced engine performance, poor acceleration, decreased fuel efficiency, rough idling, or the Check Engine Light turning on.

3. What causes the P0237 code to trigger on a Jeep?

Common causes include a faulty MAP sensor, damaged or corroded wiring, vacuum leaks, a failed turbocharger, or a malfunctioning PCM.

4. Can I drive my Jeep with the P0237 code?

Driving with this code is possible but not recommended, as it may lead to reduced performance and potentially cause further damage to the engine or turbo system.

5. How do I diagnose the P0237 code on a Jeep?

Diagnosis involves checking the MAP sensor and its wiring, inspecting for vacuum leaks, testing the sensorâ€™s voltage, and using a scan tool to monitor live data.

6. How do I fix the P0237 code on my Jeep?

Common fixes include replacing the MAP sensor, repairing or replacing damaged wiring or connectors, addressing vacuum leaks, or recalibrating the PCM.

7. What tools are required to repair the P0237 code?

Youâ€™ll typically need a multimeter, a vacuum gauge, a scan tool, and possibly basic hand tools to replace the MAP sensor or repair wiring.

8. How much does it cost to repair the P0237 code on a Jeep?

Costs vary but generally range from $50 to $200 for a MAP sensor replacement, with additional costs if professional diagnostics or wiring repairs are needed.

9. Can a dirty air filter cause the P0237 code on a Jeep?

While unlikely, a severely clogged air filter could impact airflow and sensor readings, potentially contributing to related issues.

10. Does a PCM reflash fix the P0237 code on a Jeep?

A PCM reflash may help if the issue is related to outdated software, but itâ€™s typically only necessary after ruling out hardware problems like sensor failure or wiring issues.