Inspect Current Sensor: Notes
CAUTION:
- If the nut for the current sensor is loosened with the negative lead-acid battery cable terminal connected to the battery, excessive torque will be applied to the negative lead-acid battery cable terminal and the lead-acid battery terminal will be damaged. When removing the negative lead-acid battery cable terminal and current sensor, be careful not to damage the lead-acid battery terminal.
- Be careful not to contact the positive lead-acid battery cable terminal.
- Disconnect the current sensor connector before disconnecting the negative lead-acid battery cable terminal. If the negative lead-acid battery cable terminal is disconnected first, the PCM may mistakenly recognize a signal from the current sensor causing interference with the engine control.
- Connect the negative lead-acid battery cable terminal before connecting the current sensor connector. If the current sensor connector is connected first, the PCM may mistakenly recognize a signal from the current sensor and learn the lead-acid battery condition incorrectly.
- Verifying the tightness while holding the current sensor may apply excessive force to the negative lead-acid battery cable terminal and the terminal could loosen, causing poor engine starting. Therefore, hold only the terminal without holding the current sensor. The current sensor uses a waterproof connector.
NOTE:
- Perform a DTC/visual inspection because the voltage/waveform cannot be inspected.