C1002 on Fiat: How to Diagnose & Fix
ABS Hydraulic Pump Motor Circuit Open
1 Fiat model · 1 documented issue · 1 critical · $700-$1,500 repair
C1002 on Fiat by model: symptoms, diagnosis and fix
The electric power steering system can fail intermittently or completely, causing sudden loss of power assist. The steering column motor or its control module is typically the root cause.
Common Symptoms
- Sudden heavy steering
- EPS warning light
- Intermittent steering assist loss
- Steering wheel off-center
How to Fix
Replace the EPS motor and steering column assembly. Reprogram the EPS module with updated software if available.
Sources for this issue (1)
C1002 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C1002 mean on a Fiat?
C1002 stands for "ABS Hydraulic Pump Motor Circuit Open." This chassis code means the ABS module detected an open (broken) electrical circuit to the anti-lock brake system's hydraulic pump motor. That pump motor builds and releases brake-line pressure during ABS, traction-control, or stability-control events, so the module continuously checks that it can power the motor. An 'open circuit' means current can't flow — usually a wiring, connector, ground, or motor fault. Your normal brakes still work, but ABS and related stability features will typically be disabled with warning lights on. On Fiat it is documented across 1 model: 500.
What are the most common causes of C1002?
The most common causes of C1002 are: Open or broken wiring to the pump motor, Corroded, loose, or disconnected connector at the ABS unit, Failed ABS pump motor, Blown fuse or faulty relay feeding the pump, Poor ground connection, Faulty ABS control module/hydraulic unit, Low battery voltage or charging system fault. The specific cause varies by vehicle.
How much does it cost to fix C1002 on a Fiat?
Published repair estimates on Fiat range from $700 to $1,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.