The P0636: Power Steering Control Circuit Low code refers to low voltage detected in the power steering control circuit. This issue can be caused by low voltage in the circuit, a faulty power steering control module, or wiring issues. If unresolved, it can impair the vehicle’s power steering system and reduce steering assist.
P0636 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0636: Power Steering Control Circuit Low |
| Is it serious? | Yes, as it can reduce or eliminate steering assist, making it harder to control the vehicle. |
| Possible causes | – Low voltage in power steering control circuit – Faulty power steering control module – Wiring issue |
| How to diagnose? | – Test the power steering control circuit voltage – Inspect wiring and connectors – Replace power steering control module if necessary |
P0636 Meaning
The P0636 code indicates that the power steering control circuit is experiencing lower-than-expected voltage. This low voltage can affect the power steering system’s ability to provide steering assist, making the vehicle more difficult to steer, especially at lower speeds.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for other related codes, as they might help identify additional issues with the power steering system. | OBD-II Scanner |
| Test the Power Steering Control Circuit Voltage | Use a multimeter to check the voltage in the power steering control circuit. Compare the readings to the manufacturer’s specifications. | Multimeter |
| Inspect Wiring and Connectors | Inspect the wiring and connectors associated with the power steering system for any signs of damage, loose connections, or corrosion that could cause low voltage. | Flashlight, Multimeter |
| Test the Power Steering Control Module | If the circuit voltage is low, test the power steering control module to ensure it is functioning correctly. | Diagnostic Tool, Multimeter |
| Replace the Power Steering Control Module if Necessary | If the power steering control module is faulty and cannot regulate the circuit properly, replace it to restore proper steering control. | Replacement Module, Tools |
| Clear the Code and Test | After repairs, clear the code using an OBD-II scanner and test the vehicle to ensure the power steering system is working correctly. | OBD-II Scanner, Vehicle Manual |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko