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 DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWS (1 OF 5)AUTOMATIC TRANSMISSION RELATED CONNECTOR END VIEWS (4L80-E/4L85-E)AUTOMATIC TRANSMISSION INPUT SPEED SENSOR CONNECTOR END VIEW (AT ISS)
2006 Chevrolet Suburban C2500, 6.0 U
Automatic Transmission Input Speed Sensor Connector End View (AT ISS)
2006 Chevrolet Suburban C2500, 6.0 USECTION Automatic Transmission Input Speed Sensor Connector End View (AT ISS)
Automatic Transmission Related Connector End Views
Connector Part Information
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Terminal Part Information
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Automatic Transmission Input Speed Sensor (AT ISS)
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| A | RD/BK | 1230 | Transmission Input Speed Sensor Signal High |
| B | D-BU/WH | 1231 | Transmission Input Speed Sensor Signal Low |
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.