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 MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 777 (ENGINE CONTROLS - 6.6L - INTRODUCTION (1 OF 2))SCAN TOOL OUTPUT CONTROLS
2006 Chevrolet Suburban C2500, 6.0 U
Scan Tool Output Controls
2006 Chevrolet Suburban C2500, 6.0 USECTION Scan Tool Output Controls
WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. 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 |
|---|---|---|
| Cylinder Power Balance | Fuel System | Disables each fuel injector. Device Control can be changed at any engine or vehicle speed. The device control will not change unless changed or cancelled by the scan tool. |
| EGR Solenoid | Engine Output Controls | Activates the exhaust gas recirculation (EGR) solenoid ON or OFF. The EGR position is limited to 30 percent duty cycle, which is 100 percent commanded open valve. The device control is limited to 10 seconds ON, with a 10 second OFF cooling time. This device control is disabled by DTC P0403. |
| Fuel Pressure Control | Fuel System | Changes the Fuel Pressure in 10 MPa increments from 25-160 MPa. The Device Control will not change unless changed or cancelled by the scan tool. This device control is disabled if any of the following conditions are met:
|
| Fuel Pump | Engine Output Controls | Activates the fuel transfer pump or prime pump (depending on application) ON or OFF. The Device Control will not change unless changed or cancelled by the scan tool. |
| Glow Plug | Engine Output Controls | Activates the Glow Plug Controller ON or OFF. The Device Control will be aborted after 12 seconds for the first activation, and after 5 seconds for every other activation. Device control is inhibited if the engine is running. |
| Injector Flow Rate Programming | Fuel System | Allows the technician to change the fuel injector calibration in the ECM and GPCM. Refer to Fuel Injector Flow Rate Programming for procedure. |
| Intake Air Heater | Engine Output Controls | Commands the Intake Air Heater ON or OFF. The Device Control will be aborted after 12 seconds for the first activation, and after 5 seconds for every other activation. Device control is inhibited if the engine is running. |
| Malfunction Indicator Lamp | Engine Output Controls | Activates the malfunction indicator lamp (MIL). The MIL will remain illuminated until cancelled by the scan tool. |
| Pilot Injector Balance Procedure | Fuel System | Disables each fuel injector pilot injection. Device Control can be changed at any engine or vehicle speed. The device control will not change unless changed or cancelled by the scan tool. |
| RPM Control | Fuel System | Adjusts the engine speed in 25, 100, or 500 RPM increments between 600-1500 RPM. The Device Control will not change unless changed or cancelled by the scan tool. |
| TC Learn | Engine Output Controls | Allows the ECM to learn the current TC vane position. |
| TC Vane Position Sensor | Engine Output Controls | Adjusts the turbocharger vane position in 10 percent increments from 0-100 percent. The device control will be aborted if engine speed is above idle or if the coolant temperature is too cold. |
| TC Vane Solenoid | Engine Output Controls | Cycles the turbocharger vane position solenoid to 100 percent boost and back to 0 percent boost. The device control is limited to engine speeds less than 2,000 RPM and will be disabled if DTC P0045 is set. |
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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.