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Automotive Simple
  • OBD2 Trouble Codes and Fixes

P0646 – A/C Clutch Relay Control Circuit Low – Causes, Symptoms, Diagnosis, and Fixes

P0646 – A/C Clutch Relay Control Circuit Low – Causes, Symptoms, Diagnosis, and Fixes

When your car’s check engine light flickers on, among the myriad of codes that could pop up, one you might encounter is the P0646 code. This particular code signals an issue with the A/C clutch relay control circuit being too…

  • Dustin Babich
  • 16 February 2025
  • OBD2 Trouble Codes and Fixes

P0645 – A/C Clutch Relay Control Circuit – Causes, Symptoms, Diagnosis, and Fixes

P0645 – A/C Clutch Relay Control Circuit – Causes, Symptoms, Diagnosis, and Fixes

When your car’s check engine light pops on, one specific code that might appear is the P0645 code, which points to an issue with the A/C clutch relay control circuit. But what does this mean for you and your vehicle?…

  • Dustin Babich
  • 16 February 2025
  • OBD2 Trouble Codes and Fixes

P0644 – Driver Display Serial Communication Circuit – Causes, Symptoms, Diagnosis, and Fixes

P0644 – Driver Display Serial Communication Circuit – Causes, Symptoms, Diagnosis, and Fixes

When your check engine light flickers to life, it can send a wave of anxiety through any driver. The P0644 code is one of those cryptic messages that can leave you scratching your head. What does it mean? How serious…

  • Dustin Babich
  • 16 February 2025
  • OBD2 Trouble Codes and Fixes

P0643 – Sensor Reference Voltage A Circuit High – Causes, Symptoms, Diagnosis, and Fixes

P0643 – Sensor Reference Voltage A Circuit High – Causes, Symptoms, Diagnosis, and Fixes

If you’ve ever encountered the P0643 code while driving, you know it can be a frustrating experience. This diagnostic trouble code (DTC) points to an issue with the sensor reference voltage A circuit being too high. But what does that…

  • Dustin Babich
  • 16 February 2025
  • OBD2 Trouble Codes and Fixes

P0642 – Sensor Reference Voltage A Circuit Low – Causes, Symptoms, Diagnosis, and Fixes

P0642 – Sensor Reference Voltage A Circuit Low – Causes, Symptoms, Diagnosis, and Fixes

When the check engine light illuminates on your dashboard, one common culprit behind that ominous glow is the P0642 code, signaling a problem with the sensor reference voltage A circuit. But what does this really mean for your vehicle? Understanding…

  • Dustin Babich
  • 16 February 2025
  • OBD2 Trouble Codes and Fixes

P0641 – Sensor Reference Voltage A Circuit/Open – Causes, Symptoms, Diagnosis, and Fixes

P0641 – Sensor Reference Voltage A Circuit/Open – Causes, Symptoms, Diagnosis, and Fixes

When the check engine light flickers to life on your dashboard, among the many codes that might pop up, P0641 is one that often leaves drivers scratching their heads. This code points to a potential issue with the sensor reference…

  • Dustin Babich
  • 16 February 2025
  • OBD2 Trouble Codes and Fixes

P0640 – Intake Air Heater Control Circuit – Causes, Symptoms, Diagnosis, and Fixes

P0640 – Intake Air Heater Control Circuit – Causes, Symptoms, Diagnosis, and Fixes

If you’ve ever seen the P0640 code pop up on your vehicle’s dashboard, you know it can be a bit alarming. This code involves the intake air heater control circuit and signals that something isn’t quite right under the hood.…

  • Dustin Babich
  • 16 February 2025
  • OBD2 Trouble Codes and Fixes

P0639 – Throttle Actuator Control Range/Performance Bank 2 – Causes, Symptoms, Diagnosis, and Fixes

P0639 – Throttle Actuator Control Range/Performance Bank 2 – Causes, Symptoms, Diagnosis, and Fixes

When your check engine light flickers on, one code that might appear is the P0639 code, indicating an issue with the throttle actuator control for Bank 2. This seemingly innocuous number can signal underlying problems in your vehicle’s performance and…

  • Dustin Babich
  • 15 February 2025
  • OBD2 Trouble Codes and Fixes

P0638 – Throttle Actuator Control Range/Performance Bank 1 – Causes, Symptoms, Diagnosis, and Fixes

P0638 – Throttle Actuator Control Range/Performance Bank 1 – Causes, Symptoms, Diagnosis, and Fixes

If you’ve ever found yourself staring at your vehicle’s dashboard, puzzled by the mysterious glow of a check engine light. One common culprit behind this frustrating scenario is the P0638 code—Throttle Actuator Control Range/Performance Bank 1. But what does it…

  • Dustin Babich
  • 15 February 2025
  • OBD2 Trouble Codes and Fixes

P0637 – Power Steering Control Circuit High – Causes, Symptoms, Diagnosis, and Fixes

P0637 – Power Steering Control Circuit High – Causes, Symptoms, Diagnosis, and Fixes

If you’ve ever experienced a sudden loss of power steering or noticed that your car is handling strangely, the P0637 code might be lurking in the background. This trouble code signals an issue within your vehicle’s power steering control circuit.…

  • Dustin Babich
  • 15 February 2025
  • OBD2 Trouble Codes and Fixes

P0636 – Power Steering Control Circuit Low – Causes, Symptoms, Diagnosis, and Fixes

P0636 – Power Steering Control Circuit Low – Causes, Symptoms, Diagnosis, and Fixes

This particular code signals an issue with your power steering control circuit and can lead to some serious driving challenges if left unchecked. Whether you’re experiencing difficulty turning your wheel or simply curious about what this code means, understanding the…

  • Dustin Babich
  • 15 February 2025
  • OBD2 Trouble Codes and Fixes

P0635 – Power Steering Control Circuit – Causes, Symptoms, Diagnosis, and Fixes

P0635 – Power Steering Control Circuit – Causes, Symptoms, Diagnosis, and Fixes

When your dashboard lights up with the P0635 code, it can feel like a red flag waving furiously in front of you. What does it mean, and how serious is this alert? The P0635 code signals an issue in the…

  • Dustin Babich
  • 15 February 2025
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