Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA20054RUNNER LIMITED, 4.0 U, 4WDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTWARNING SYSTEMSTIRE PRESSURE WARNING SYSTEM - DIAGNOSTICS
2005 Toyota 4Runner Limited, 4.0 U, 4WD
Tire Pressure Warning System - Diagnostics
2005 Toyota 4Runner Limited, 4.0 U, 4WDSECTION Tire Pressure Warning System - Diagnostics
- Precaution
- Location
- System Diagram
- Description
- How To Proceed With Troubleshooting
- Customer Problem Analysis Check
- Registration
- Operation Check
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- Diagnostic Trouble Codes Check/Clear
- Data List/Active Test
- Diagnostic Trouble Code Chart
- DTC C2111/11, C2112/12, C2113/13, C2114/14, C2115/15: Transmitter Id1-Id5 Operation Stop
- DTC C2121/21, C2122/22, C2123/23, C2124/24, C2125/25, C2181/81, C2182/82, C2183/83, C2184/84, C2185/85: Transmitter Id1-Id5 Not Received & Transmitter Id1-Id5 Not Received (Test Diagnosis)
- DTC C2141/41, C2142/42, C2143/43, C2144/44, C2145/45: Transmitter Id1-Id5 Error
- DTC C2165/65, C2166/66, C2167/67, C2168/68, C2169/69: Abnormal Temperature Inside Id1-Id5 Tire
- DTC C2171/71: Transmitter Id Not Registered
- DTC C2176/76: Receiver Error
- DTC C2191/91: Vehicle Speed Signal Error
- Tire Pressure Warning Lamp Circuit
- Ecu Power Source Circuit
- TC Terminal Circuit
- Identify Transmitter (Error In Present)
- Identify Transmitter (Error In Past)
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.