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P0507 on Toyota 4Runner: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code P0507 (Idle Control System RPM Higher Than Expected - Diagnosis) specifically on the Toyota 4Runner (2020–2026, 4.0L V6 (1GR-FE) / 2.4L i-FORCE Turbo 4-Cyl).

2020–2026
4RunnerSUV
Sensor Voltage Ref
0.1V – 5.0V Ref
4Runner SAE J1979 Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. DIY Time
45 – 90 Min
Basic hand tools
Check P0507 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 P0507 on Toyota 4Runner

When the Engine Control Module (ECM/PCM) on your Toyota 4Runner (4.0L V6 (1GR-FE) / 2.4L i-FORCE Turbo 4-Cyl) logs fault code P0507, drivers commonly observe:

Engine idles at 1,000+ RPM in park/neutral on Toyota 4Runner (4.0L V6 (1GR-FE) / 2.4L i-FORCE Turbo 4-Cyl)
RPM surges or hunts at red lights on Toyota 4Runner (4.0L V6 (1GR-FE) / 2.4L i-FORCE Turbo 4-Cyl)
Check Engine Light illuminated on Toyota 4Runner (4.0L V6 (1GR-FE) / 2.4L i-FORCE Turbo 4-Cyl)
Toyota 4Runner OBD-II Port Location
The 16-pin diagnostic connector is located Lower dashboard near parking brake mechanism. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Toyota 4Runner

Historical warranty claims and technical repair bulletins for Toyota 4Runner point to the following failure distribution:

55%
Intake manifold vacuum leak (Toyota OEM Part)
25%
Carbon buildup causing sticky electronic throttle body (Toyota OEM Part)
12%
Uncalibrated idle air volume after battery disconnect (Toyota OEM Part)
8%
Faulty PCV valve stuck open (Toyota OEM Part)

3. Step-by-Step DIY Repair Guide for Toyota 4Runner

01
Check for Unmetered Vacuum Leaks

Spray brake cleaner around intake manifold gaskets; an RPM change reveals the leak location. on the Toyota 4Runner equipped with 4.0L V6 (1GR-FE) / 2.4L i-FORCE Turbo 4-Cyl.

02
Clean Throttle Body & Carbon Deposits

Gently clean carbon soot around throttle blade using throttle cleaner and microfiber towel. on the Toyota 4Runner equipped with 4.0L V6 (1GR-FE) / 2.4L i-FORCE Turbo 4-Cyl.

03
Perform Idle Air Volume Relearn Procedure

Follow vehicle-specific ignition key on/off timing sequence or use OBD scanner to reset baseline idle. on the Toyota 4Runner equipped with 4.0L V6 (1GR-FE) / 2.4L i-FORCE Turbo 4-Cyl.

Other Common Fault Codes on Toyota 4Runner

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Toyota 4Runner:

4. Toyota 4Runner P0507 FAQs

What causes code P0507 to trigger on a Toyota 4Runner?

On the Toyota 4Runner (4.0L V6 (1GR-FE) / 2.4L i-FORCE Turbo 4-Cyl), P0507 is most frequently caused by Intake manifold vacuum leak or Carbon buildup causing sticky electronic throttle body.

Where is the OBD-II port located on my Toyota 4Runner?

On the Toyota 4Runner, the 16-pin DLC diagnostic connector is located Lower dashboard near parking brake mechanism. 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 4Runner with code P0507?

Driveable, but braking distance may increase slightly due to high engine idle. Given that P0507 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.