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P0443 on Toyota Camry

EVAP System Purge Control Valve Circuit Malfunction

Factory diagnostic protocol and troubleshooting wire for fault code P0443 specifically for the Toyota Camry (2020–2026, 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP).

Verified OEM Telemetry & Field Repair Tree
Toyota Camry2020–2026
Toyota Camry
Sedan2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Camry SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. Repair Cost
$90 - $250 (DIY: $25 - $70)
Parts & Labor DIY
Check P0443 On Another Toyota Model:
Diagnose P0443 on Specific Camry Model Year:

1. Symptoms of P0443 on Toyota Camry

When the Engine Control Module (ECM/PCM) on your Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP) logs fault code P0443, drivers commonly observe:

Check Engine Light on on Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP)
Engine hard to start immediately after pumping gas at the gas station on Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP)
Rough or fluctuating engine idle on Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP)
Slight fuel odor under hood on Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP)
Toyota Camry OBD-II Port Location
The 16-pin diagnostic connector is located Directly under driver dash, left of steering column above brake pedal. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Toyota Camry

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

55%
Failed EVAP purge solenoid coil (open or shorted internally) (Toyota OEM Part)
25%
Broken or frayed wiring harness to purge valve connector (Toyota OEM Part)
12%
Blown EVAP fuse in fuse block (Toyota OEM Part)
8%
Corroded pins inside electrical plug (Toyota OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Toyota Camry.

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

01
Locate EVAP Purge Solenoid Under Hood

Find the purge valve mounted on the intake manifold with one vacuum line leading to the intake and one to the charcoal canister. on the Toyota Camry equipped with 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP.

Required Tool: Flashlight
02
Test Purge Valve Solenoid Resistance

Unplug 2-pin connector and measure resistance across terminals with multimeter. Typical spec is 14–30 ohms. If open (OL) or shorted (0 ohms), solenoid is dead. on the Toyota Camry equipped with 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP.

Required Tool: Digital Multimeter
03
Test Vacuum Sealing

Remove purge valve and blow into it. A healthy de-energized purge valve should be 100% sealed. If air passes through, the internal seal is stuck open. on the Toyota Camry equipped with 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP.

Required Tool: Hand Vacuum Pump
04
Replace EVAP Purge Valve

Disconnect quick-release vapor lines, unbolt mounting bracket, snap new OEM purge valve into place, and reconnect electrical plug. on the Toyota Camry equipped with 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP.

Required Tool: 10mm Socket, Pliers
05
Clear Codes

Clear DTCs with scanner and verify EVAP monitor completes. on the Toyota Camry equipped with 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP.

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Toyota Camry (P0443)

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EVAP Seal Replacement

OEM Tethered Fuel Gas Cap with O-Ring

4.7 / 5.0 (Direct Fit)

Tight-sealing factory fuel cap resolves common EVAP small/large leak codes without workshop visits.

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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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Other Common Fault Codes on Toyota Camry

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

4. Toyota Camry P0443 FAQs

What causes code P0443 to trigger on a Toyota Camry?

On the Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP), P0443 is most frequently caused by Failed EVAP purge solenoid coil (open or shorted internally) or Broken or frayed wiring harness to purge valve connector.

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

On the Toyota Camry, the 16-pin DLC diagnostic connector is located Directly under driver dash, left of steering column above brake pedal. 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 Camry with code P0443?

Yes. Safe to drive, but engine may experience hard starting after refueling at gas station. Given that P0443 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.