Buick Workshop Service and Repair Manuals > Reatta V6-231 3.8L VIN C SFI (1990) > Brakes and Traction Control | Antilock Brakes / Traction Control Systems | Hydraulic Assembly, Traction Control | Component Information | Testing and Inspection | Component Tests and General Diagnostics | Chart A-2, Code 21 (Main Valve)

Chart A-2, Code 21 (Main Valve)|Page 4450 > < Chart D-2, Hydraulic Unit Functional Check|Page 4447

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Fig. 14 Chart A-2, ABS Trouble Code 21 (Main Valve)

Brakes and Traction Control
Antilock Brakes / Traction Control Systems
Hydraulic Assembly, Traction Control / Component Information
Testing and Inspection
Component Tests and General Diagnostics
Chart A-2, Code 21 (Main Valve)

Chart A-2, Code 21 (Main Valve)|Page 4450 > < Chart D-2, Hydraulic Unit Functional Check|Page 4447