C1106 — Traction Control Disable Switch Circuit Short to Battery

chassis (brakes/steering/suspension)

Is it safe to drive?

Drive with caution The base brakes usually still work, so careful driving is possible — but ABS and stability control are disabled, which lengthens stopping distances on slippery roads. Fix promptly and avoid harsh driving.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm C1106 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many C0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the ABS / stability control for damage, corrosion, chafing or poor contact.
Subsystem check Read all four wheel speed PIDs while driving slowly — the faulty sensor drops out or reads implausibly.
Subsystem check Inspect the sensor and tone ring for metal debris and damage near the hub.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm C1106 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for C1106 (parts and labor, USD, independent shop rates): Repair sensor wiring: $80–$250; Replace a wheel speed sensor: $120–$350; ABS module repair or replacement: $400–$1,200. Overall, fixing C1106 usually costs between $80 and $1,200. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

How do I diagnose C1106 myself?

Start with a scan: confirm C1106, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the ABS / stability control, and verify the suspect component against live data before buying parts.

Will C1106 clear itself?

Sometimes C1106 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

What are the symptoms of C1106?

Drivers most often notice: stability control disabled message, brake pedal pulsation changes, ABS not operating during hard braking, speedometer or cruise control issues.

What does OBD2 code C1106 mean?

Traction Control Disable Switch Circuit Short to Battery (C1106): a chassis (brakes/steering/suspension) fault affecting the ABS / stability control. Short, gentle driving to a shop is usually possible. Most often caused by damaged sensor wiring or corroded connector, failed wheel speed sensor, faulty ABS module or pump motor.

What is the most common cause of C1106?

The most common causes are: damaged sensor wiring or corroded connector, failed wheel speed sensor, faulty ABS module or pump motor.

When your scan tool displays code C1106, it means the vehicle's brake control computer has found an electrical fault in the traction control disable circuit. Specifically, the module detected an abnormal voltage condition — a short to battery — indicating that the circuit is receiving power when it should not be. This code falls into the chassis category, which covers brakes, steering, and suspension systems.

Traction control works in tandem with the anti-lock braking system to help maintain vehicle stability during acceleration. When one wheel begins to spin faster than the others, the system applies brake pressure to that wheel to restore traction. The disable switch allows the driver to turn this feature off if desired. C1106 triggers when something in this disable circuit is drawing battery voltage directly, preventing the system from operating normally.

To set C1106, the control module must detect this abnormal voltage reading across multiple drive cycles. When the fault occurs, the module captures a freeze frame — a snapshot of engine RPM, vehicle speed, coolant temperature, and engine load at that exact moment. Technicians use this data to recreate the driving conditions that triggered the code, making diagnosis more efficient.

Common Symptoms of C1106

Traction control disabled warning appears in the instrument cluster
Brake pedal feels different or pulsates unexpectedly during normal braking
ABS fails to activate during hard braking maneuvers
Speedometer shows incorrect readings or cruise control disengages unexpectedly
ABS or electronic stability control warning light remains illuminated

What Causes C1106?

The most frequent cause of C1106 is damaged wiring or connectors in the wheel speed sensor circuit. Wiring chafing, corrosion at electrical connections, and pinched harnesses all create resistance and abnormal voltage readings that the module interprets as a short.

Damaged sensor wiring or corroded connector
Failed wheel speed sensor
Faulty ABS module or pump motor assembly
Damaged tone ring (reluctor ring) on the wheel hub
Blown fuse in the ABS circuit
Ground connection issues in the brake control system

How to Diagnose C1106

Connect an OBD2 scanner, retrieve code C1106, and record all freeze frame data before clearing anything. This snapshot reveals exactly what conditions were present when the module detected the fault.
Check for related diagnostic trouble codes. P-codes (powertrain) and other C-codes often point to the actual root cause. Search manufacturer technical service bulletins using your vehicle's VIN on the automaker's website or nhtsa.gov for known fixes.
Perform a thorough visual inspection of the wiring harness and connectors feeding the ABS and stability control modules. Look for damaged insulation, broken wires, corrosion buildup, and loose or bent terminals.
Monitor live wheel speed data from all four sensors while driving slowly on a flat surface. A faulty sensor will drop out intermittently or display speed readings that don't match the others.
Remove and inspect each wheel speed sensor and its corresponding tone ring. Metal contamination, physical damage, and improper air gap all cause C1106 to set.
Clear the code, complete a full drive cycle that reproduces the freeze frame conditions, and verify C1106 does not return. If the code resets, the repair is incomplete.

Repair Options for C1106

Prices reflect typical U.S. market rates for parts and labor at independent repair shops.

Repair sensor wiring: $80–$250
Replace a wheel speed sensor: $120–$350
ABS module repair or replacement: $400–$1,200

How Much Does It Cost to Fix C1106?

The total repair cost depends entirely on which component failed. The most economical fix involves repairing damaged wiring or cleaning corroded connectors. Wheel speed sensor replacement represents a moderate investment, while an ABS module replacement or rebuild sits at the higher end of the range. Always pursue the cheapest probable cause first before committing to expensive component replacement.

Overall, fixing C1106 typically costs between $80 and $1,200 depending on diagnosis and required parts.

Can You Drive with C1106?

Standard braking function remains available when C1106 is active, so the vehicle can still stop. However, anti-lock braking and electronic stability control are disabled or operating in a limited capacity. Stopping distances increase noticeably on wet, icy, or uneven surfaces. Drive cautiously to a repair facility and avoid aggressive maneuvers until the issue is resolved.