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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.
Diagnostic costs: Before replacing a VVT solenoid, mechanics usually run a diagnostictest 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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