P0858 OBD-II: Traction Control Input Signal Low
P0858 Severity
Will P0858 go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P0858?
The engine computer (PCM) and the Electronic Brake Control Module (EBCM) constantly talk to each other. When the vehicle is braking, the EBCM will tell the PCM to reduce the amount of power coming out of the engine. If the two modules fail to communicate, code P0858 is stored and the traction control system is disabled.
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OBD II Fault Code
- OBD II P0858
OBD-II Code Traction control system is disabled is defined as a Traction Control Input Signal Low
The engine computer (PCM) and the Electronic Brake Control Module (EBCM) constantly talk to each other. When the vehicle is braking, the EBCM will tell the PCM to reduce the amount of power coming out of the engine. If the two modules fail to communicate, code P0858 is stored and the traction control system is disabled.
Traction control system is disabled Symptoms
- Traction control system is disabled
Common Problems That Trigger the P0858 Code
- Electronic brake control module (EBCM) failure
- Powertrain Control Module (PCM) failure
- Wiring issue
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