Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSNISSAN-DATSUN2012370Z TOURING, 2D CONVERTIBLE, STANDARD TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - SYSTEM AND COMPONENT TESTINGASCD BRAKE SWITCHCOMPONENT FUNCTION CHECK
2012 Nissan-Datsun 370Z Touring, 2D Convertible, Standard Trans
Component Function Check
2012 Nissan-Datsun 370Z Touring, 2D Convertible, Standard TransSECTION Component Function Check
- CHECK ASCD BRAKE SWITCH FUNCTION
With CONSULT
- Turn ignition switch ON.
- Select "BRAKE SW1" in "DATA MONITOR" mode with CONSULT.
- Check "BRAKE SW1" indication under the following conditions.
Monitor item Condition Indication BRAKE SW1 Brake pedal (A/T or M/T models and synchrorev match mode)
Brake pedal and clutch pedal (M/T models without synchrorev match mode)Slightly depressed OFF Brake pedal (A/T or M/T models and synchrorev match mode)
Brake pedal or clutch pedal (M/T models without synchrorev match mode)Fully released ON
Without CONSULT
- Turn ignition switch ON.
- Check the voltage between ECM harness connector terminals as per the following.
ECM Condition Voltage (V) Connector + - Terminal Terminal M107 126 (ASCD brake switch signal) 128 Brake pedal (A/T or M/T models and synchrorev match mode)
Brake pedal and clutch pedal (M/T models without synchrorev match mode)Slightly depressed Approx. 0 Brake pedal (A/T or M/T models and synchrorev match mode)
Brake pedal or clutch pedal (M/T models without synchrorev match mode)Fully released Battery voltage Is the inspection result normal?
YES: INSPECTION END
NO: Go to "DIAGNOSIS PROCEDURE ".
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.