C1114
ABS Power Relay Output Short Circuit To Ground
Chassis Chassis/Safety ABS Power Relay 🔴 Serious — Stop or limit driving
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What This Actually Means
In plain language — no jargon

The ABS system's power relay is short-circuiting to ground, like a broken electrical switch that keeps the circuit constantly connected to the negative terminal. This prevents the ABS module from receiving proper power control.

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Symptoms You May Notice
3 known symptoms for this code
ABS warning light illuminated on dashboard
Loss of anti-lock braking function; wheels may lock during hard braking
Possible brake system malfunction or reduced braking performance
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Embedded Systems Insight
What the ECU/ECM is actually computing

The ABS control module monitors the power relay output voltage to ensure it switches on and off correctly. When a short to ground occurs, the voltage drops below the normal operating range, indicating a circuit failure. The ECU detects this abnormal voltage condition and sets the fault code.

Voltage & Parameter Thresholds

Parameter Normal Range Fault Condition
Relay Output Voltage 12V nominal when relay is closed, near 0V when open Continuous low voltage or ground short detected
Relay Resistance Minimal resistance when energized, high resistance when de-energized Abnormally low resistance indicating short to ground
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Diagnostic & DIY Fix Guide
Check these in order — from cheapest to most complex
1
ABS Power Relay
Locate and replace the faulty ABS relay in the under-hood fuse box or relay panel.
2
Wiring harness and connectors
Inspect relay connectors and wiring for corrosion, damage, or loose pins and repair as needed.
3
ABS Control Module
If relay and wiring are good, the ABS module itself may be damaged and require replacement or reprogramming.