AutoCodes – Ford – C1097 Ford

C1097 Ford Code - ABS Hydraulic Pump Motor Circuit Short To Ground

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: C1097 Ford indicates ABS Hydraulic Pump Motor Circuit Short To Ground.
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 1,039

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 C1097 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 C1097 Ford - ABS Hydraulic Pump Motor Circuit Short To Ground - AutoCodes.com — C1097 Ford Code - ABS Hydraulic Pump Motor Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC C1097 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 C1097 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 C1097 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 C1097 Ford Code

1. What does OBDII code C1097 mean on a Ford vehicle?

Code C1097 indicates a problem with the ABS hydraulic pump motor circuit, specifically a short to ground.

2. What are the common symptoms of code C1097?

Symptoms include an illuminated ABS warning light, reduced braking performance, or the ABS system not working properly.

3. What causes the C1097 code to appear?

This code is usually caused by a short in the ABS hydraulic pump motor circuit, damaged wiring, a faulty ABS pump motor, or a defective ABS control module.

4. Can I still drive my Ford with the C1097 code?

While the vehicle can still be driven, the ABS system may not function properly, increasing the risk of wheel lockup during hard braking.

5. How do I diagnose the C1097 code?

Start by inspecting the wiring and connectors for damage or corrosion, check the ABS pump motor for proper operation, and test the ABS control module for faults.

6. How do I fix the C1097 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 the C1097 code?

Repair costs can vary depending on the exact issue but typically range from $200 to $800, depending on labor and parts.

8. Can a blown fuse cause the C1097 code?

Yes, a blown fuse in the ABS system circuit could lead to this code, so checking the fuses is a good first step.

9. Does the C1097 code always mean the ABS pump motor is faulty?

Not always. The issue could also stem from wiring problems, a bad ground, or a malfunctioning ABS control module.

10. Will clearing the C1097 code fix the problem?

Clearing the code may turn off the ABS light temporarily, but the underlying issue must be repaired to prevent the code from returning.

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