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.
2015 Nissan-Datsun Altima BaseFACTORY OEM SERVICE PROCEDURE
Data Monitor Mode
| Monitor item (Unit) | Remarks |
|---|---|
| BATTERY VOLT (V) | Displays the power supply voltage for power steering control module. |
| STEERING ANGLE (deg) | Displays the steering angle based on the steering angle signal transmitted by CAN communications. |
| STR ANG SPD (deg/s) | Displays the steering angle speed based on the steering angle signal transmitted by CAN communications. |
| MOTOR CURRENT (A) | Displays the current value consumed by power steering control module. |
| MTR REV SPD COMM (rpm) | Displays the power steering motor speed command value. |
| MTR REV SPD (rpm) | Displays the power steering motor speed. |
| C/U TEMP (°C or °F) | Displays the temperature of the power steering control module. |
| C/U TEMP A (°C or °F) | Displays the temperature of the power steering control module. |
| MTR ASSIST (%) | Displays the current percentage of the allowable assist ratio power steering motor. |
| ESTM VHCL SPD (km/h or mph) | Displays the vehicle speed calculated by the power steering control module. |
| WARNING LAMP (On/Off) | Hydraulic pump electric power steering system warning lamp control status is displayed. |
| ENGINE STATUS (STOP/RUN/CRANK) | Engine speed is displayed from engine condition signal with CAN communication |
| VHCL SPD JUDGE (OK/NG) | Displays the receiving status of the vehicle speed signal transmitted by CAN communications. |
Factory Service Tools
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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.