There’s a problem with the ABS system in your car if you get the C0278 code- specifically, it’s an open or short circuit in the relay for the ABS solenoid. This can be caused by a few different things, but most likely it’s either a blown fuse or a wiring issue. Regardless of the cause, though, this is definitely a problem that needs to be fixed as soon as possible because it could lead to some serious safety issues down the road.
If you have a C0278 error code, it means there is an open or short circuit in the abs solenoid relay. This can be caused by a number of things, including a blown fuse, bad wiring, or a faulty abs sensor. If you’re getting this error code, it’s important to diagnose and fix the problem as soon as possible.
Otherwise, you could end up damaging your vehicle’s brakes.
C0278 Open Circuit in ABS Solenoid Relay
C0278 Toyota Land Cruiser 100
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-What are the Symptoms of a C0278 Error Code
A C0278 error code is a diagnostic trouble code (DTC) for “Secondary Air Injection System Relay Circuit Malfunction”. This code is set when the powertrain control module (PCM) detects a problem with the secondary air injection system relay circuit.
The most common symptom of a C0278 error code is that the check engine light will be illuminated on the dash.
Other symptoms may include: -Rough idle -Reduced fuel economy
Open or short circuit in the ABS solenoid relay is a common issue that can cause the ABS light to come on. There are a few ways to test for this issue, but the most common way is to use an ohmmeter. If the resistance is out of range, then there is an open or short circuit in the relay.