• Contact with the positive battery terminal could cause electrocution due to a short circuit and result in serious injury or death, or damage to vehicle parts. Do not contact the positive battery terminal when performing the procedure.
Caution
• With the battery connected and the ignition switched ON, or if servicing is performed for a long period (10 min or more) with the ignition switched off.
Required Procedure After Negative Battery Terminal Disconnection/Connection
System name
Conditions after disconnecting the negative battery terminal
Required procedure
Reference
Before disconnecting negative battery terminal
After connecting negative battery terminal
i-stop system
Specified information in the PCM cleared and the i-stop does not operate normally.
Verify PID “BATT_SOC” value and record. *1 (Without M Hybrid)
*1 :Because the “BATT_SOC” value before disconnecting the negative battery terminal is required for the battery condition initial setting (i-stop setting), record the “BATT_SOC” value before disconnecting the negative battery terminal.
*2 :For vehicles with i-stop, if the negative battery terminal is disconnected and re-connected, battery condition initial setting (i-stop setting) must be performed.
Negative Battery Terminal Disconnection
Vehicle without i-stop or vehicle with i-stop and with M Hybrid
1. Switch the ignition to off.
Caution
• Be careful not to contact the positive battery terminal.
Note
• The positive battery cable nut cannot be removed to prevent it from falling off.
2. Disconnect the negative battery terminal.
• When disconnecting the plastic deformed negative battery terminal, expand the gap of the negative battery terminal using a flathead screwdriver, and remove the nut.
• If the nut for the current sensor is loosened with the negative battery terminal connected to the battery, excessive torque will be applied to the negative battery terminal and the battery terminal will be damaged. When removing the negative battery terminal and current sensor, be careful not to damage the battery terminal.
• Be careful not to contact the positive battery terminal.
6. Disconnect the current sensor connector.
Note
• The positive battery cable nut cannot be removed to prevent it from falling off.
7. Disconnect the negative battery terminal.
• When disconnecting the plastic deformed negative battery terminal, expand the gap of the negative battery terminal using a flathead screwdriver, and remove the nut.
• Connection of the negative battery terminal will be done in the battery condition initial setting (i-stop setting) procedure.
Vehicle with i-stop and without M Hybrid
Caution
• Connect the negative battery 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 battery condition incorrectly.
• Verifying the tightness while holding the current sensor may apply excessive force to the terminal and the terminal could loosen, causing poor engine starting. When verifying the tightness of the negative battery terminal, only hold the terminal area, not the current sensor.
• Connection of the negative battery terminal and the current sensor connector will be done in the battery condition initial setting (i-stop setting) procedure.
