Diagnostic Testing Electricity Hydraulics 
Brake & Front End
AUGUST 27, 2024
On a modern vehicle, the position of the brake pedal is used by the shift interlock, ABS system, cruise control, traction control, brake lights and electric emergency brake. If each system required its own switch and wiring, the complexity of the wiring harness and switches would be a diagnostic nightmare.
RepairSmith
DECEMBER 6, 2024
Diagnostic costs: Before replacing a VVT solenoid, mechanics usually run a diagnostic test to confirm its the real issue. It helps maintain smooth hydraulic function and prevents buildup that can cause issues. Locate and unplug the solenoids electrical connectors.
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