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Home >> Chevrolet >> 2022 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (3 Of 5)) >> Diagnostic Information and Procedures >> DTC P1018, P1019, P131B, P131C, P203B-P203D, P206B-P206D, P21C5, P2ADA-P2ADD, U2627, U2628, or U2630 >> Circuit/System Description

Circuit/System Description

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The reductant quality sensor includes an integrated level sensor and temperature sensor to measure reductant fluid level and temperature. The reductant quality sensor is located in the reductant tank and uses an ultrasonic signal to measure reductant fluid quality and level. The reductant quality sensor communicates with the reductant control module using serial data.

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