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 MANUALSTOYOTA2007HIGHLANDER 4WD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSINFORMATION BUSSERVICE PRECAUTIONS
2007 Toyota Highlander 4WD L4-2.4L (2AZ-FE)
Information Bus: Service Precautions
2007 Toyota Highlander 4WD L4-2.4L (2AZ-FE)SECTION Service Precautions
CAN COMMUNICATION SYSTEM
PRECAUTION
1. STEERING SYSTEM HANDLING PRECAUTIONS
a. Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in hazardous driving.
2. SRS AIRBAG SYSTEM HANDLING PRECAUTIONS
a. This vehicle is equipped with an SRS (Supplemental Restraint System) such as the driver airbag and front passenger airbag. Failure to carry out service operations in the correct sequence could cause unexpected SRS deployment during servicing and may lead to a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), Refer to Restraint Systems Service Precautions.
3. CONNECTOR HANDLING
a. When checking resistance with a tester, insert the tester probes from the backside (harness side) of the connector.
b. Perform the resistance check after disconnecting the negative cable of the auxiliary battery.
c. Use a service wire to check the connector if it is impossible to check continuity from the rear of the connector.
PRECAUTION
1. STEERING SYSTEM HANDLING PRECAUTIONS
a. Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in hazardous driving.
2. SRS AIRBAG SYSTEM HANDLING PRECAUTIONS
a. This vehicle is equipped with an SRS (Supplemental Restraint System) such as the driver airbag and front passenger airbag. Failure to carry out service operations in the correct sequence could cause unexpected SRS deployment during servicing and may lead to a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), Refer to Restraint Systems Service Precautions.
3. CONNECTOR HANDLING
a. When checking resistance with a tester, insert the tester probes from the backside (harness side) of the connector.
b. Perform the resistance check after disconnecting the negative cable of the auxiliary battery.
c. Use a service wire to check the connector if it is impossible to check continuity from the rear of the connector.
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.