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 DIAGNOSISDIAGRAMSELECTRICAL DIAGRAMSANTILOCK BRAKES / TRACTION CONTROL SYSTEMSSERVICE HINTS
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)
Service Hints
2002 Toyota Highlander 4WD L4-2.4L (2AZ-FE)SECTION Service Hints
------WITH ABS------
A4, A5 ABS SPEED SENSOR FRONT LH, RH
1 - 2 : 1.40 - 1.80 kOhm (20 °C, 68 °F)
A24, A25 ABS SPEED SENSOR REAR LH, RH
1 - 2 : 0.9 - 1.3 kOhm (25 °C, 77 °F) (4WD)
: Max. 1.45 kOhm (25 °C, 77 °F) (2WD)
B4 BRAKE WARNING SW
1 - 2 : Closed with the float down
S6 (A), S7 (B), S8 (C) SKID CONTROL ECU
(B) 8 - GROUND : 10 - 14 volts with the ignition SW at ON position
(B) 11 - GROUND : 10 - 14 volts with the stop light SW on (Brake pedal depressed)
(A) 11, (A) 22, (C) 14, (C) 15 - GROUND : Always continuity
S15 STOP LIGHT SW
2 - 1 : Closed with brake pedal depressed
------WITH VSC (Vehicle Skid Control)-------
A4, AS ABS SPEED SENSOR FRONT LH, RH
1 - 2 : 1.4 - 1.8 kOhm (20 °C, 68 °F)
A24, A25 ABS SPEED SENSOR REAR LH, RH
1 - 2 : 0.9 - 1.3 kOhm (25 °C, 77 °F) (4WD)
1 - 2 : Max. 1.45 kOhm (25 °C, 77 °F) (2WD)
B4 BRAKE WARNING SW
1 - 2 : Closed with the float down
S11 (C), S12 (D) SKID CONTROL ECU
(C) 7 - GROUND : Approx. 12 volts with the ignition SW at ON position
(C) 3 - GROUND : Approx. 12 volts with the stop light SW on (Brake pedal depressed)
(D) 2, (D) 3 - GROUND : Always continuity
S15 STOP LIGHT SW
2 - 1 : Closed with brake pedal depressed
A4, A5 ABS SPEED SENSOR FRONT LH, RH
1 - 2 : 1.40 - 1.80 kOhm (20 °C, 68 °F)
A24, A25 ABS SPEED SENSOR REAR LH, RH
1 - 2 : 0.9 - 1.3 kOhm (25 °C, 77 °F) (4WD)
: Max. 1.45 kOhm (25 °C, 77 °F) (2WD)
B4 BRAKE WARNING SW
1 - 2 : Closed with the float down
S6 (A), S7 (B), S8 (C) SKID CONTROL ECU
(B) 8 - GROUND : 10 - 14 volts with the ignition SW at ON position
(B) 11 - GROUND : 10 - 14 volts with the stop light SW on (Brake pedal depressed)
(A) 11, (A) 22, (C) 14, (C) 15 - GROUND : Always continuity
S15 STOP LIGHT SW
2 - 1 : Closed with brake pedal depressed
------WITH VSC (Vehicle Skid Control)-------
A4, AS ABS SPEED SENSOR FRONT LH, RH
1 - 2 : 1.4 - 1.8 kOhm (20 °C, 68 °F)
A24, A25 ABS SPEED SENSOR REAR LH, RH
1 - 2 : 0.9 - 1.3 kOhm (25 °C, 77 °F) (4WD)
1 - 2 : Max. 1.45 kOhm (25 °C, 77 °F) (2WD)
B4 BRAKE WARNING SW
1 - 2 : Closed with the float down
S11 (C), S12 (D) SKID CONTROL ECU
(C) 7 - GROUND : Approx. 12 volts with the ignition SW at ON position
(C) 3 - GROUND : Approx. 12 volts with the stop light SW on (Brake pedal depressed)
(D) 2, (D) 3 - GROUND : Always continuity
S15 STOP LIGHT SW
2 - 1 : Closed with brake pedal depressed
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.