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  1. The P0138 code means the Engine Control Module (ECM) has detected a high voltage signal (over 999 mV) from the downstream sensor for more than 10 seconds.
    了解详细信息：
    The P0138 code means the Engine Control Module (ECM) has detected a high voltage signal (over 999 mV) from the downstream sensor for more than 10 seconds.

    P0138 Code — What it means and how t…

    ricksfreeautorepairadvice.com/p0138-code-what-it …
    The P0138 code for Jeep vehicles indicates that there is a problem with the O2 (oxygen) sensor 1/2 circuit being too high.

    P0138 Jeep Code - O2 Sensor 1/2 Circuit …

    www.engine-codes.com/p0138_jeep.html
    The P0138 is a generic DTC code indicating that the downstream Oxygen sensor (Bank-1, Sensor-2) sends an excessively high voltage reading for an extended period.

    How to Troubleshoot & Fix P0138 Jeep D…

    jeepadvices.com/how-to-troubleshoot-fix-p0138-jee…
    New codes: p0325 (Knock sensor), p0138 (Bank 1 sensor 2 switching slow), p0139 (Bank 1 sensor 2 switching high). Replace both rear O2 sensors with OEM parts. Check for a reflash for the problem.

    Fix P0138: Mechanic’s solutions that WO…

    www.iamcarhacker.com/fix-p0138/
  2. 700R4 Transmission
    https://www.700r4transmissionhq.com

    Jeep Cherokee P0138: Oxygen Sensor High Voltage (Bank 1

  3. Jeep Enthusiast Forums
    https://www.jeepforum.com › threads

    Code P0138 high voltage code, Bank 1 sensor 2? - Jeep …

    2009年5月3日 · The P0138 high voltage code indicates an open in the rear sensor heater circuit. It may be a bad internal heater within the rear O2 sensor, you could check the heater wires (dark green/white and black) for continuity.

    标记:
    P0138 Code
    O2 Sensor
    High voltage
  5. Engine-Codes.com
    https://www.engine-codes.com

    P0138 Jeep Code - O2 Sensor 1/2 Circuit High - Engine-Codes.com

    标记:
    P0138 Code
    Oxygen sensor
    O2 Sensor
  6. Jeep Advices
    https://jeepadvices.com

    How to Troubleshoot & Fix P0138 Jeep DTC Code? A Detailed Guide

    标记:
    P0138 Code
    Oxygen sensor
    High voltage
    Direct traffic control
  7. Jeep Cherokee Talk
    https://www.cherokeetalk.com › threads

    P0138 code | Jeep Cherokee Talk

    标记:
    P0138 Code
    Oxygen sensor
    O2 Sensor
  8. AutoCodes
    https://www.autocodes.com

    P0138 Jeep Code - O2 Sensor 1/2 Circuit High - AutoCodes

    标记:
    P0138 Code
    O2 Sensor
    High voltage
  9. 其他用户还问了以下问题
    What causes the p0138 code in the Jeep Cherokee?
    Here are the most common issues that cause the P0138 code in the Jeep Cherokee. They are presented in order (somewhat) of most to least likely to cause the problem. Bad Oxygen Sensor – The O2 sensor itself is one of the most likely reasons that P0138 is triggering your service engine soon light.

    Jeep Cherokee P0138: Oxygen Sensor High Voltage (Bank 1

    700r4transmissionhq.com
    What does p0138 code mean?
    The P0138 code is set when the Engine Control Module (ECM) detects that the rear O2 sensor signal voltage remains excessively high for an extended period of time. What are Code Possible Symptoms? The Heated Oxygen Sensor 2 (HO2S) (Rear O2 Sensor), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank.

    P0138 Jeep Code - O2 Sensor 1/2 Circuit High - AutoCodes

    autocodes.com
    Why does my 99 XJ have a p0138 code?
    my 99 xj also has this same code. reads ''PO138 O2 circuit high voltage (bank1, sensor2). and im pretty sure my gas mileage is fuuuucked The most common cause for the P0138 code is a faulty oxygen sensor located after the catalytic converter (called the downstream sensor). I just had it on my 99 at 140k and a new oxygen sensor resolved it.

    Code P0138 high voltage code, Bank 1 sensor 2? - Jeep Enthusiast Foru…

    jeepforum.com
    What's a p0138 code & p0325 code?
    Initial codes: p0138, p0139 (both related to rear O2). Repaired fuel tank and replaced O2 sensor. Two weeks later, MIL on again and slight fuel smell reported. New codes: p0325 (Knock sensor), p0138 (Bank 1 sensor 2 switching slow), p0139 (Bank 1 sensor 2 switching high).

    Fix P0138: Mechanic’s solutions that WORKED – Iamcarhacker

    iamcarhacker.com
    How much does it cost to diagnose a p0138 Jeep?
    To diagnose the P0138 Jeep code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

    P0138 Jeep Code - O2 Sensor 1/2 Circuit High - AutoCodes

    autocodes.com
    How much does it cost to repair a p0138 code?
    The cost of repairing a P0138 code on a Jeep can vary depending on the specific model, year, and engine type. On average, replacing an O2 sensor can cost between $150 and $250 for the part, with additional costs for labor ranging from $100 to $200.

    P0138 Jeep Code - O2 Sensor 1/2 Circuit High - Engine-Codes.com

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  10. Rick's Free Auto Repair Advice
    https://ricksfreeautorepairadvice.com

    P0138 Code — What it means and how to fix it — Ricks Free Auto …

    标记:
    P0138 Code
    Oxygen sensor
    High voltage
    How-to
  11. iamcarhacker.com
    https://www.iamcarhacker.com

    Fix P0138: Mechanic’s solutions that WORKED – …

    2023年10月26日 · The code P0138: Oxygen Sensor Circuit High Voltage (Bank 1, Sensor 2) points out a fault in the downstream oxygen sensor for Bank 1, and most likely is caused by a malfunctioning oxygen sensor or issues in the …

    标记:
    P0138 Code
    Oxygen sensor
    High voltage
  12. Jeep Enthusiast Forums
    https://www.jeepforum.com › threads

    Running rich? Codes P0132, P0135, P0138 - Jeep Enthusiast Forums

    标记:
    O2 Sensor
    Codes P0132
    P0136 Jeep
  13. Mechanic Base
    https://mechanicbase.com › trouble-code

    P0138 – O2 Oxygen Sensor Circuit High Voltage …

    2023年1月7日 · Here are a few of the top reported P0138 code symptoms. Check engine Light; Reduced fuel economy; Misfiring engine; Rough idle; Trouble accelerating; Stalling engine; Causes of the P0138 Code. It might seem …

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    • Jeep Cherokee

    必须包含:

    标记:
    P0138 Code
    Oxygen sensor
    O2 Sensor
    High voltage
    Check Engine Lights
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