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18 ENGINE MANAGEMENT SYSTEM 22 DESCRIPTION AND OPERATION SWITCH - BRAKE PEDAL The brake pedal switch is located at the rear of the brake pedal box, and activates when the brake pedal is The brake pedal switch can fail in any of the following ways: • Switch open circuit. • Short circuit to vehicle supply. • Short circuit to earth. SWITCH - CLUTCH PEDAL The clutch pedal switch is located on the clutch master cylinder and is activated when the clutch pedal is operated. • Smoother gear change. • Greater exhaust gas emission control. • Improved fuel consumption. Input / Output The clutch pedal switch can fail in any one of the following ways: • Switch open circuit. • Short circuit to vehicle supply. • Short circuit to vehicle earth. In the event of a clutch pedal switch failure surge damping will be inactive. |