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 MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 130 (ENGINE CONTROLS/FUEL - 1.4L (LUV) - DTC P0300 TO DTC P2635 & SYMPTOMS)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P2199TYPICAL SCAN TOOL DATA
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol
Typical Scan Tool Data
2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION Typical Scan Tool Data
WARNING: This page is about a different car, the 2018 Chevrolet Sonic. However, it is still accessible from the selected car via links, so may be relevant.
IAT Sensor 1
| Circuit | Short to Ground | Open or High Resistance | Short to Voltage |
|---|---|---|---|
| Operating Conditions:
Engine Running Parameter Normal Range: Varies with ambient temperature |
|||
| Sensor | 150°C (302°F) | -40°C (-40°F) | -40°C (-40°F)* |
| Low Reference | - | -40°C (-40°F) | -40°C (-40°F)* |
| *Internal ECM or sensor damage may occur if the circuit is shorted to B+ | |||
IAT Sensor 2
| Circuit | Short to Ground | Open or High Resistance | Short to Voltage |
|---|---|---|---|
| Operating Conditions:
Engine Running Parameter Normal Range: Varies with ambient temperature |
|||
| 5 V Reference | -40°C (-40°F) 10 Hz |
-40°C (-40°F) 10 Hz |
- |
| Signal | -40°C (-40°F) | -40°C (-40°F) | -40°C (-40°F)* 10 Hz* |
| Ground | - | -40°C (-40°F) 10 Hz |
- |
| *Internal ECM or sensor damage may occur if the circuit is shorted to B+ | |||
RENDER: 1.0x
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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.