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Home >> Chevrolet >> 2020 >> Traverse High Country, 4WD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Diagnostic Information and Procedures >> DTC C027B >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Vacuum Pump Relay B+ 2 2 - -
Vacuum Pump Relay Control C027B 00 C027B 00 C027B 00
1
-
Vacuum Pump Relay Ground - 2 - -
Brake Booster Pump Motor Control 2 2 1 -
Brake Booster Pump Motor Ground - 2 - -
1. Brake Booster Pump Motor Always ON
2. Brake Booster Pump Motor Always OFF