AutoCodes – Ford – C1098 Ford

C1098 Ford Code - ABS Hydraulic Pump Motor Circuit Short To Battery

Quick Answer

The Anti-Lock Brake System (ABS) prevents wheel lock-up by monitoring the wheel speed sensors and actuating Hydraulic Control Unit (HCU) modulating the brake pressure to prevent wheel lockup. Common causes include Low Brake Fluid, Faulty ABS Hydraulic Pump Motor, ABS Hydraulic Pump Motor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C1098 Ford indicates ABS Hydraulic Pump Motor Circuit Short To Battery.
Common causes: Common causes include Low Brake Fluid, Faulty ABS Hydraulic Pump Motor, ABS Hydraulic Pump Motor harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,879

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 11, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1098 Ford Description

The Anti-Lock Brake System (ABS) prevents wheel lock-up by monitoring the wheel speed sensors and actuating Hydraulic Control Unit (HCU) modulating the brake pressure to prevent wheel lockup. By preventing the wheels from locking up, the driver is able to maintain steering control and stop in the shortest possible distance under most conditions. The traction control system is controlled by the Powertrain Control Module (PCM) and utilizes the ABS module for wheel speed information only. Engine Only Traction Control (EOTC) helps maintain vehicle control during acceleration by modulating engine torque when driving on slippery or loose surfaces.
The ABS Module monitors the ABS Hydraulic Pump Motor. The ABS Module sets the OBDII code when the ABS Hydraulic Pump Motor is not to factory specifications.

OBDII Code C1098 Ford - ABS Hydraulic Pump Motor Circuit Short To Battery - AutoCodes.com — C1098 Ford Code - ABS Hydraulic Pump Motor Circuit Short To Battery

What does this mean?

What are the Possible Causes of the DTC C1098 Ford?

Low Brake Fluid
Faulty ABS Hydraulic Pump Motor
ABS Hydraulic Pump Motor harness is open or shorted
ABS Hydraulic Pump Motor circuit poor electrical connection

How to Fix the DTC C1098 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1098 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1098 Ford Code

1. What does the OBDII code C1098 mean on a Ford vehicle?

C1098 indicates a problem with the ABS hydraulic pump motor circuit, specifically a short to the battery.

2. What are the common symptoms of code C1098 on a Ford?

Symptoms include the ABS warning light illuminating, loss of ABS functionality, and potentially a pulsating brake pedal during braking.

3. What causes the C1098 code to appear?

Common causes include a short in the ABS pump motor wiring, a faulty ABS pump motor, or a damaged ABS control module.

4. Can I still drive my Ford with a C1098 code?

While the vehicle may still be drivable, ABS functionality will be compromised, leading to reduced braking performance in slippery conditions.

5. How do I diagnose the C1098 code on a Ford?

Start by inspecting the ABS pump motor wiring and connectors for damage or corrosion. Then, test the ABS pump motor and check for shorts in the circuit.

6. How do I fix the C1098 code?

Repairs may involve replacing damaged wiring, repairing connectors, replacing the ABS pump motor, or in some cases, replacing the ABS control module.

7. How much does it cost to repair a C1098 ABS issue?

Repair costs vary but can range from $200 to $1,000, depending on whether wiring repairs or ABS pump motor replacement is needed.

8. Can a blown fuse cause the C1098 code?

Yes, a blown ABS fuse could trigger the code, so fuses should be checked and replaced if necessary.

9. Will clearing the C1098 code fix the issue?

Clearing the code will not fix the underlying problem. The issue must be repaired before the code can be cleared successfully.

10. Can a weak battery cause the C1098 code?

A weak or failing battery may lead to electrical issues, but C1098 specifically points to a short in the ABS pump motor circuit, so the focus should be on that system.