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 MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 605 (BODY CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL OUTPUT CONTROLS
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Scan Tool Output Controls
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Scan Tool Output Controls
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| Inadvertent Power Relay | Inadvertent Power | The BCM commands the Inadvertent Power Relay On/Off controlling power to interior lamps. |
| Load Management | Miscellaneous Test | The BCM controls the Load Management Relay, commanding it ON or OFF to enable or disable high current loads. |
| Retained Accessory Power | Miscellaneous Test | The BCM activates the RAP relay when you select ON. All systems powered by the RAP Relay should be active until commanded OFF. |
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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.