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 MANUALSCHEVROLET1990LUMINA APV V6-191 3.1LREPAIR AND DIAGNOSISDIAGRAMSDIAGRAM INFORMATION AND INSTRUCTIONSWIRE COLOR CODE IDENTIFICATION
1990 Chevrolet Lumina APV V6-191 3.1L
Wire Color Code Identification
1990 Chevrolet Lumina APV V6-191 3.1LSECTION Wire Color Code Identification
Black: BLK
Blue: BLU
Brown: BRN
Gray: GR
Green: GRN
Natural: NAT
Orange: ORN
Pink: PNK
Purple: PPL
Red: RED
Tan: TAN
White: WHT
Yellow: YEL
Dark: DK (example: DK GRN same as Dark Green)
Light: LT (example: LT BLU same as Light Blue)
Blue: BLU
Brown: BRN
Gray: GR
Green: GRN
Natural: NAT
Orange: ORN
Pink: PNK
Purple: PPL
Red: RED
Tan: TAN
White: WHT
Yellow: YEL
Dark: DK (example: DK GRN same as Dark Green)
Light: LT (example: LT BLU same as Light Blue)
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.