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 MANUALSTOYOTA2002HIGHLANDER 4WD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISWINDOWS AND GLASSWINDOWSTESTING AND INSPECTIONPINOUT VALUES AND DIAGNOSTIC PARAMETERS
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)
Pinout Values and Diagnostic Parameters
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)SECTION Pinout Values and Diagnostic Parameters
1. POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (DOOR ECU)
a. Inspect the door ECU.
1. Disconnect the master switch connector.
2. Inspect the voltage and continuity of each terminal of the vehicle's side connector.
3. Connect the connector, and inspect the voltage between each terminal of the connector.
2. MULTIPLEX NETWORK BODY ECU
a. Inspect the body ECU.
1. Disconnect the body ECU connectors A, B, C and D.
2. Inspect the voltage and continuity of each terminal of the vehicle's side connector.
3. Connect the connector, and inspect the voltage between each terminal of the connector.
Terminals Of ECU - Connector View:
a. Inspect the door ECU.
1. Disconnect the master switch connector.
Terminals Of ECU - Pinouts (Standard):
2. Inspect the voltage and continuity of each terminal of the vehicle's side connector.
Terminals Of ECU - Pinouts (Standard):
3. Connect the connector, and inspect the voltage between each terminal of the connector.
2. MULTIPLEX NETWORK BODY ECU
Multiplex Network Body ECU - Connector View:
a. Inspect the body ECU.
1. Disconnect the body ECU connectors A, B, C and D.
Multiplex Network Body ECU - Pinouts (Standard):
2. Inspect the voltage and continuity of each terminal of the vehicle's side connector.
Multiplex Network Body ECU - Pinouts (Standard):
3. Connect the connector, and inspect the voltage between each terminal of the connector.
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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.