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Home >> GMC >> 2020 >> Canyon SL >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Diagnostic Information and Procedures >> Brake Booster Pump Motor Malfunction >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Brake Booster Pump Motor Relay B+ 1 1 - -
Brake Booster Pump Motor Control 1 1 2 -
Brake Booster Pump Motor Relay Control 1 1 2 -
Brake Booster Pump Motor Relay Ground - 1 - -
Brake Booster Pump Motor Ground - 1 1 -
1. Brake Booster Pump Motor Always Off
2. Brake Booster Pump Motor Always ON