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 MANUALSTOYOTA19904RUNNER 2D UTILITY, 3.0 V, STANDARDREPAIR AND DIAGNOSISELECTRICALCOMPONENT LOCATIONSELECTRICAL COMPONENT LOCATORSWITCHES
1990 Toyota 4Runner 2D Utility, 3.0 V, Standard
Electrical Component Locator: Switches
1990 Toyota 4Runner 2D Utility, 3.0 V, StandardSECTION Switches
SWITCHES LOCATION
| Component | Location | |
|---|---|---|
| A/C Dual Pressure Switch | On evaporator case. | |
| Back Door (4Runner) | ||
| Control Switch | In tailgate. See Figure. | |
| Lock Detection Switches (2) | In tailgate. See Figure. | |
| Power Door Window Switch | In center console. See Figure. | |
| Rear Window Limit Switch | In left side of tailgate. See Figure. | |
| Rear Window Lock Switch | In center console. See Figure. | |
| Unlock Warning Switch | In tailgate. See Figure. | |
| Back-Up Light Switch | On right side of transmission. | |
| Brake Fluid Level Warning Switch | Inside brake master cylinder. | |
| Clutch Switch | On bracket, above clutch pedal. See Figure. | |
| Cold Start Injector Time Switch | ||
| 4-Cyl. | On right side of engine block, in coolant passage. See Figure. | |
| V6 | In coolant passage, at rear of intake manifold. See Figure. | |
| Hazard Warning Switch | In upper right side of instrument panel. See Figure. | |
| Neutral Start Switch (A/T) | On right side of transmission. See Figure & Figure . | |
| Oil Pressure Switch | On left front side of engine block. | |
| Overdrive (O/D) Main Switch | On shifter assembly. See Figure. | |
| Parking Brake Switch | At rear of brake lever mounting bracket. See Figure. | |
| Seat Belt Switch | On driver's side buckle. | |
| Stoplight Switch | On bracket, above brake pedal. See Figure, Figure & Figure . | |
| Transmission Shift Position Switch | Under shift selector console. | |
| Transfer Case Shift Position Switch | On right side of transfer case. See Figure. | |
RENDER: 1.0x
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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.