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 MANUALSCHEVROLET1990CHEVY VAN G20, 5.0 H, 475/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSPOWER DOOR LOCKSCOMPONENT LOCATIONS
1990 Chevrolet Chevy Van G20, 5.0 H, 475/M40
Component Locations
1990 Chevrolet Chevy Van G20, 5.0 H, 475/M40SECTION Component Locations
COMPONENT LOCATIONS
| Component | Location |
|---|---|
| Busbar Ground | Near Fuse Block. See Fig 1 . |
| Contact Buttons | At Rear Of Right B-Pillar. See Fig 2 . |
| Door Lock Delay Module | Behind Instrument Panel, Right Side Of Steering Column. See Fig 3 . |
| Door Lock Delay Relay | Behind Left Side Of Instrument Panel. See Fig 3 . |
| Door Lock Motor, Left Front | In Left Door. See Fig 4 . |
| Door Lock Motor, Right Front | In Right Door. See Fig 4 . |
| Door Lock Motor, Rear | In Rear Door. See Fig 5 . |
| Door Lock Motor, Side | In Side Door. See Fig 2 . |
| Door Lock Relay | Behind Left Side Of Instrument Panel. See Fig 3 . |
| Door Lock Switch | In Door Trim Panel. See Fig 4 . |
| Fuse Block | Behind Left Side Of Instrument Panel. See Fig 6 . |
| C213 | Inside Left Side Of Cowl Panel. See Fig 3 . |
| C221 | Inside Right Side Of Cowl Panel. See Fig 3 . |
| C232 | At Power Door Lock Delay Module. See Fig 3 . |
| C233 | At Power Door Lock Delay Module. See Fig 3 . |
| C279 | Inside Left Side Of Cowl. See Fig 3 . |
| C291 | At Busbar Ground. See Fig 3 . |
| C292 | At Fuse Block. See Fig 3 . |
| C298 | At Power Door Lock Relay. See Fig 3 . |
| C340 | At Sliding Door Jamb Contact Switch. See Fig 2 . |
| C341 | At Sliding Door Jamb Contact Switch. See Fig 2 . |
| C351 | Left Side Of Roof Panel, Near No. 1 Roof Bow. See Fig 7 . |
| C362 | Inside Lower Right B-Pillar. See Fig 2 . |
| C463 | Behind Right Rear Door Jamb. See Fig 5 . |
| C851 | Inside Sliding Door. See Fig 2 . |
| C852 | Inside Sliding Door. See Fig 2 . |
| GT402 | At Left Rear Door. See Fig 8 . |
| GT505 | On Left Front Door. See Fig 4 . |
| GT605 | On Right Front Door. See Fig 4 . |
| GT903 | At Right Rear Door. |
| S240 | Left Side Of Instrument Panel, Above Fuse Block. See Fig 3 . |
| S242 | Right Side Of Steering Column, Near Power Door Lock Delay Module. See Fig 3 . |
| S243 | Right Side Of Steering Column, Near Power Door Lock Delay Module. See Fig 3 . |
| S251 | Left Side Of Instrument Panel, Above Fuse Block. See Fig 3 . |
| S394 | In Body Wiring Harness, Near No. 2 Roof Bow. See Fig 7 . |
| S395 | In Body Wiring Harness, Near No. 2 Roof Bow. See Fig 7 . |
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.