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 MANUALSTOYOTA2006SEQUOIA 4WD V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTDIAGRAMSDIAGNOSTIC AIDSHOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMSELECTRONIC CIRCUIT INSPECTION PROCEDURECHECK FOR SHORT CIRCUIT
2006 Toyota Sequoia 4WD V8-4.7L (2UZ-FE)
Check For Short Circuit
2006 Toyota Sequoia 4WD V8-4.7L (2UZ-FE)SECTION Check For Short Circuit
CHECK FOR SHORT CIRCUIT
a. If the wire harness is ground shorted (Fig. 5), locate the section by conducting a resistance check with the body ground.
b. Check the resistance with the body ground.
1. Disconnect connectors A and C and measure the resistance.
HINT: Measure the resistance while lightly shaking the wire harness vertically and horizontally. If your results match the examples, a short circuit exists between terminal 1 of connector A and terminal 1 of connector C.
2. Disconnect connector B and measure the resistance.
If the results match the examples, a short circuit exists between terminal 1 of connector B2 and terminal 1 of connector C.
a. If the wire harness is ground shorted (Fig. 5), locate the section by conducting a resistance check with the body ground.
b. Check the resistance with the body ground.
1. Disconnect connectors A and C and measure the resistance.
HINT: Measure the resistance while lightly shaking the wire harness vertically and horizontally. If your results match the examples, a short circuit exists between terminal 1 of connector A and terminal 1 of connector C.
2. Disconnect connector B and measure the resistance.
If the results match the examples, a short circuit exists between terminal 1 of connector B2 and terminal 1 of connector C.
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.