Vehicles have many control units that use more electricity.
These units control their own system based on information from diverse
sensors. It is important to have a stable power supply as there diverse
sensors giving a variety of information. Battery sensor is mounted on
battery (-) terminal. It transmits battery voltage, current, temperature
information to ECM. ECM controls generating voltage by duty cycle
based on these signals.
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Disconnect the battery sensor connector (A).
3.
Remove the battery negative (-) cable after removing the bolt (B).
Inspection
1.
Connect the battery voltage and check the blower motor rotation.
2.
If the blower motor voltage is not operated well, substitute with a known-good blower motor and check for proper operation.
3.
If the problem is corrected, replace the blower motor.