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 MANUALSTOYOTA20054 RUNNER 2WD V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSDTC 53ENGINE CONTROL SYSTEM COMMUNICATION CIRCUIT MALFUNCTION
2005 Toyota 4 Runner 2WD V8-4.7L (2UZ-FE)
Engine Control System Communication Circuit Malfunction
2005 Toyota 4 Runner 2WD V8-4.7L (2UZ-FE)SECTION Engine Control System Communication Circuit Malfunction
DTC 53 ENGINE CONTROL SYSTEM COMMUNICATION CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
The circuit is used to send TRAC & VSC control information from the skid control ECU to the ECM, and engine control information from the ECM to the skid control ECU via the CAN communication system.
INSPECTION PROCEDURE
CIRCUIT DESCRIPTION
DTC Detection Condition:
The circuit is used to send TRAC & VSC control information from the skid control ECU to the ECM, and engine control information from the ECM to the skid control ECU via the CAN communication system.
Wiring Diagram:
Step 1:
INSPECTION PROCEDURE
RENDER: 1.0x
NO RELATED
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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.