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C0244ToyotaToyota Prius HubAll Toyota C0244Moderate Severity

C0244 on Toyota Prius: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code C0244 (C0244: Pulse Width Modulated (PWM) Traction Control Error) specifically on the Toyota Prius (2020–2026, 2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP)).

Toyota Prius
DIY Parts Estimate
$200 - $600 (DIY: $50 - $150)
Prius OEM Fitment
Shop Labor Quote
$180 – $380
Based on $110/hr labor
Drivability Status
Drivable (Short Trip)
Moderate urgency level
Est. DIY Time
45 – 90 Min
Basic hand tools
Check C0244 On Another Toyota Model:
Toyota CamryToyota Camry HybridToyota Camry TRDToyota CorollaToyota RAV4Toyota HighlanderToyota Grand HighlanderToyota TacomaToyota TundraToyota 4RunnerToyota CrownToyota PriusToyota Land Cruiser

1. Symptoms of C0244 on Toyota Prius

When the Engine Control Module (ECM/PCM) on your Toyota Prius (2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP)) logs fault code C0244, drivers commonly observe:

System alert or indicator light illuminated (C0244) on Toyota Prius (2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP))
Intermittent performance throttling or unexpected operation halts on Toyota Prius (2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP))
Audible sensor relay clicking or anomalous status telemetry in dashboard logs on Toyota Prius (2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP))
Degraded operational throughput or error dialog popups on startup on Toyota Prius (2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP))
Readiness monitors failing state emissions or system compliance audits on Toyota Prius (2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP))
Toyota Prius OBD-II Port Location
The 16-pin diagnostic connector is located Under driver side dashboard near A-pillar trim. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Toyota Prius

Historical warranty claims and technical repair bulletins for Toyota Prius point to the following failure distribution:

55%
Component aging, oxidation, or degraded internal circuit element (Electronic Brake Control Module (EBCM)) (Toyota OEM Part)
25%
Wiring harness abrasion, loose terminal pin, or ground voltage float (Toyota OEM Part)
12%
Outdated firmware microcode or incompatible software driver update (Toyota OEM Part)
8%
Thermal stress or excessive operational duty-cycle fatigue (Toyota OEM Part)
8%
Contamination from carbon buildup, moisture ingress, or dirty filtration (Toyota OEM Part)

3. Step-by-Step DIY Repair Guide for Toyota Prius

01
Connect Diagnostic Scanner / Logging Monitor to Retrieve Telemetry

Interface with the diagnostic port or system console using verified scanning hardware. Record freeze-frame data, active sub-codes, and timestamps to isolate whether C0244 is static or intermittent. on the Toyota Prius equipped with 2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP).

Required Tool: Scan tool with ABS bleed function
02
Perform Physical & Electrical Circuit Inspection

Visually inspect the physical component (Electronic Brake Control Module (EBCM)), connector pins, and associated wiring harnesses for signs of corrosion, thermal melting, or loose grounding clips. on the Toyota Prius equipped with 2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP).

Required Tool: Multimeter, Flashlight, Contact Cleaner Spray
03
Component Testing & Resistance / Voltage Verification

Measure reference voltages and resistance thresholds against manufacturer factory specifications. Replace any component failing nominal impedance tolerances. on the Toyota Prius equipped with 2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP).

Required Tool: Scan tool with ABS bleed function
04
Execute Component Replacement or Software Configuration Patch

Install genuine OEM replacement hardware or execute registry / service commands. Ensure all mounting bolts are torqued to factory specifications. on the Toyota Prius equipped with 2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP).

Required Tool: Standard Hand Tool Set / Terminal Commands
05
Clear Diagnostic Trouble Code & Complete Verification Drive Cycle

Erase the fault code from non-volatile memory. Perform a standard verification cycle (e.g. 15-minute mixed drive or system stress benchmark) to ensure monitors reset to 'Ready' state without recurrent fault flags. on the Toyota Prius equipped with 2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP).

Required Tool: OBD-II Code Reader / Diagnostic Suite

Other Common Fault Codes on Toyota Prius

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Toyota Prius:

4. Toyota Prius C0244 FAQs

What causes code C0244 to trigger on a Toyota Prius?

On the Toyota Prius (2.0L 4-Cyl Hybrid (M20A-FXS 196HP) / Prius Prime PHEV (220HP)), C0244 is most frequently caused by Component aging, oxidation, or degraded internal circuit element (Electronic Brake Control Module (EBCM)) or Wiring harness abrasion, loose terminal pin, or ground voltage float.

Where is the OBD-II port located on my Toyota Prius?

On the Toyota Prius, the 16-pin DLC diagnostic connector is located Under driver side dashboard near A-pillar trim. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Toyota Prius with code C0244?

Yes, for temporary operations. However, resolve promptly to maintain optimal efficiency and prevent cascade failures. Given that C0244 carries a Moderate severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.