LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2018 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 331 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B123E: Radio Keypad Button Signal Circuit >> Diagnostic Fault Information
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
Circuit<!--Electrical--> Short to Ground Open/High Resistance Short to Voltage Signal Performance
Signal B123E 02 B123E 01 B123E 01 -
Ground Return Terminal 2 - 1 - -
Low Reference Terminal 8 - 1 - -
1. Radio Control buttons inoperative