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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1999SUBURBAN C2500, 6.5 FREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSPOWER DOOR LOCK SYSTEMSYSTEM TESTSTEST A: DOOR LOCKS DO NOT OPERATE FROM EITHER SWITCH (PICKUP)
1999 Chevrolet Suburban C2500, 6.5 F
Test A: Door Locks Do Not Operate From Either Switch (Pickup)
1999 Chevrolet Suburban C2500, 6.5 FSECTION Test A: Door Locks Do Not Operate From Either Switch (Pickup)
- Using test light connected to ground, backprobe door lock switch harness connector Orange wire terminal. See WIRING DIAGRAMS . If test light illuminates, go to next step. If test light does not illuminate, repair open in Orange wire.
- Backprobe test light between left lock switch harness connector Orange and Black wire terminals. If test light illuminates, replace left lock switch. If test light does not light, repair open in Black wire.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.