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.
1999 Chevrolet Tahoe 2D Utility, 5.7 R, 4WD, AutomaticFACTORY OEM SERVICE PROCEDURE
System Tests: Notes
NOTE:
To prevent damage to terminal, connector Test Adaptor Kit (J 35616-A) must be used whenever a diagnostic procedure requires checking or probing a terminal.
SYMPTOM INDEX
| Symptom | Perform Test |
|---|---|
| Courtesy Lights Inoperative With Transmitter | A |
| Door Locks Inoperative With Transmitter (All) | B |
| Door Lock/Unlock Inoperative (Left Front) | C |
| Door Lock/Unlock Inoperative With Transmitter (Rear Except Luxury) | D |
| Door Lock/Unlock Inoperative With Transmitter (Rear Luxury) | E |
| Door Unlock Inoperative With Transmitter (All) | F |
| Liftgate Window Release Inoperative With Transmitter (Except Luxury) | G |
| Liftgate Window Release Inoperative With Transmitter (Luxury) | H |
| Panic Mode Inoperative | I |
| Remote Keyless Entry System Does Not Change Customization Modes | J |
| Remote Keyless Entry System Does Not Program (Except Luxury) | K |
| Remote Keyless Entry System Does Not Program (Luxury) | L |
| Remote Keyless Entry System Inoperative (Except Luxury) | M |
Factory Service Tools
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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.
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