C1112 Code: Meaning, Symptoms, Causes & Fix

Overview

Code C1112 indicates a fault in ABS Power Relay Coil Short Circuit To Ground, typically within ABS/chassis dynamics and brake control.

Symptoms

longer braking intervention
ABS/traction light on
chassis warning indicator

Common causes

Disconnected or loose connector affecting abs power relay coil short circuit to ground
Open circuit in wiring
Connector pin damage/corrosion or harness stress near related components

How to diagnose C1112

Confirm C1112 and capture freeze-frame data with a professional scan tool.
Inspect wiring, connectors, and grounds related to abs power relay coil short circuit to ground for obvious defects.
Use a continuity test from module pin to component to identify opens/high resistance.
Check for related DTCs to identify the root-cause chain before replacing parts.
After repair, clear codes and confirm readiness monitors complete without recurrence.

Severity of code C1112

Moderate: This code is moderate severity: the vehicle may still operate, but fault progression can increase repair cost over time.

Can you drive with C1112?

Most vehicles can be driven short-term with C1112, but postpone heavy load/highway driving until repaired.

If the warning lamp is flashing or drivability/safety is affected, avoid driving and diagnose immediately.

How to fix it (step-by-step)

Repair obvious wiring/connector faults first to prevent repeat parts replacement.
Address the root fault mode (open) in the abs power relay coil short circuit to ground circuit/system.
Apply the required relearn/adaptation procedure if specified by service information.
Road-test and verify C1112 remains cleared under the conditions that originally set the code.

Fix options

Restore continuity and verify pin tension.
Clear corrosion and protect terminals.
Clear DTCs and verify with live data and completed drive cycle.

Typical repair cost

$240-$1200

Common mistakes when diagnosing C1112

Replacing parts without verifying voltage, ground, and signal integrity first.
Ignoring related stored/pending codes that indicate upstream faults.
Skipping post-repair verification drive cycle and readiness checks.

C1112 in common vehicles

C1112 appears across makes such as Ford, Toyota, Honda, Chevrolet. Failure patterns differ by platform: wiring routes, software calibration, and component supplier revisions can change root cause.

Frequently asked questions

What causes C1112?

C1112 is commonly set by open faults affecting abs power relay coil short circuit to ground.

How much does it cost to fix C1112?

For C1112, repair costs are typically $240-$1200 depending on exact root cause, labor rates, and part quality.

Can I clear C1112 without repair?

You can clear C1112 temporarily, but the code usually returns until the underlying fault is corrected.