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-DATSUN2004ALTIMA S, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESABS & ABS/TCSBRAKE CONTROL SYSTEM - TCS/ABSTROUBLE DIAGNOSISSYMPTOM CHART
2004 Nissan-Datsun Altima S, Automatic
Symptom Chart
2004 Nissan-Datsun Altima S, AutomaticSECTION Symptom Chart
SYMPTOM CHART
| Symptom | Malfunctioning part |
|---|---|
| ABS warning lamp stays on when ignition switch is turned on. | Control unit power supply circuit Warning lamp bulb circuit Control unit or control unit connector Solenoid valve relay stuck Power supply for solenoid valve relay coil |
| ABS warning lamp stays on, during self-diagnosis. | Control unit |
| ABS warning lamp does not come on when ignition switch is turned on. | Fuse, warning lamp bulb or warning lamp circuit Control unit |
| ABS warning lamp does not come on during self-diagnosis. | Control unit |
| Pedal vibration and noise | - |
| Long stopping distance | - |
| Unexpected pedal action | - |
| ABS does not work. | - |
| ABS works frequently. | - |
- Depending on the malfunction points in the ABS actuator and electric unit (control unit), only the SLIP indicator lamp will turn OFF.
- If an electronic malfunction occurs in the system components, the fail-safe function turns the ABS warning lamp ON.
Depending on the malfunction condition, ABS and EBD operate as follows.
- ABS is inactive, and EBD is active.
- Both ABS and EBD are inactive (normal braking status)
- With the above status, the self-diagnosis when the ignition switch is turned on and the vehicle is initially started is performed. ABS self-diagnosis noise may be heard as usual.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.