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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Keyless Entry System And Remote Functions) >> Diagnostic Information and Procedures >> DTC B3121: Keyless Entry Antenna 3 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

B3121 02 

The keyless entry control module detects a short to ground on the rear fascia keyless entry antenna signal circuit.

B3121 05 

The keyless entry control module detects a short to B+ or an open on the rear fascia keyless entry antenna signal circuit.

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