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Stop Light & Brake Switch: Inspection

Measure the resistance of brake switch (A) and stop light switch (B).

Fig 1: Measuring Resistance Of Brake Switch And Stop Light Switch
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BRAKE SWITCH CONNECTOR REFERENCE

Switch Pedal Terminal No. Standard value
Brake Released 1 and 4 Less than 1 Ω
Depressed 1 and 4 1 MΩ or more
Stop light Released 2 and 3 1 MΩ or more
Depressed 2 and 3 Less than 1 Ω

If NG, replace the stop & brake switch.