POWER SUPPLY SWITCHING
2016 – MX-5 – Body and Accessories
POWER SUPPLY SWITCHING
Outline
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The power supply circuit can be switched by pressing the bush button start.
Function
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Based on the push button start signals, the start stop unit switches the power supply circuit by turning on/off the relay according to the vehicle conditions such as the position of the selector lever (AT)/shift lever (MT) and depression/release of the brake pedal (AT)/clutch pedal (MT).
Automatic ignition switch off function
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When all the following signals are detected for 25 min or more, the start stop unit switches the ignition off automatically.
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Light switch signal (light switch not operated)
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Wiper and washer switch signal (wiper and washer switch not operated)
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Steering switch signal (steering switch not operated)
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Hazard warning switch signal (hazard warning switch not operated)
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Push button start signal (push button start not operated)
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ACC relay ON signal
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IG1 relay OFF signal
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All door latch switch OFF signals (all doors closed)
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Clutch pedal position (CPP) switch OFF signal (clutch pedal not depressed) (MT)
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Starter interlock switch OFF signal (clutch pedal not depressed) (MT)
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Brake switch OFF signal (brake pedal not depressed) (AT)
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Vehicle speed signal (5 km/h {3 mph} or less)
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NOT-P position switch OFF signal (selector lever is in P position) (AT)
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P position signal (selector lever is in P position) (AT)
System Wiring Diagram
Structural View
Operation
Switching the ignition
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By pressing the push button start under the conditions shown in the table, the ignition can be switched.
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- To switch the ignition to ACC or off from ON (engine on), the vehicle speed must be 5 km/h {3 mph} or less.
Switching the power supply circuit
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The start stop unit switches the power supply circuit as shown in the figure according to the switching of the ignition.
Fail-safe
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Not applicable