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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System - Automatic >> Diagnostic Information and Procedures >> DTC B3843: Air Quality Sensor Circuit >> Conditions for Setting the DTC

Conditions for Setting the DTC

B3843 02 

No PWM is detected and the signal is low.

B3843 05 

No PWM is detected and the signal is high.

B3843 08 

The sensor sends a 5% PWM signal indicating an internal sensor short circuit or open circuit.

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