NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6]

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Warning

• Before removing the SRS air bag system-related parts, always disconnect the negative battery cable and wait for 1 min. or more to allow the back-up power supply to deplete its stored power. (See AIR BAG SYSTEM SERVICE WARNINGS.)

Required procedure after negative battery cable disconnection/connection

System name

Conditions after disconnecting the negative battery cable

Required procedure

Reference

Before disconnecting negative battery cable

After connecting negative battery cable

Power window system

Reset to initial setting and auto-function is disabled.

—

Perform the power window system initial setting.

(See POWER WINDOW SYSTEM INITIALIZATION PROCEDURE.)

Sunroof system

Reset to initial setting and function is disabled.

—

Perform the sunroof system initial setting.

(See SUNROOF SYSTEM INITIALIZATION PROCEDURE.)

Clock and audio

Clock display and audio system memory are reset.

Verify the setting content.

Set the verified content before disconnecting negative battery cable.

—

Tire pressure monitoring system (TPMS)

The tire pressure monitoring system detection accuracy decreases.

—

Perform the tire pressure monitoring system initialization.

(See TIRE PRESSURE MONITORING SYSTEM INITIALIZATION PROCEDURE.)

System name	Conditions after disconnecting the negative battery cable	Required procedure	Reference
Power window system	Reset to initial setting and auto-function is disabled.	—	Perform the power window system initial setting.	(See POWER WINDOW SYSTEM INITIALIZATION PROCEDURE.)
Sunroof system	Reset to initial setting and function is disabled.	—	Perform the sunroof system initial setting.	(See SUNROOF SYSTEM INITIALIZATION PROCEDURE.)
Clock and audio	Clock display and audio system memory are reset.	Verify the setting content.	Set the verified content before disconnecting negative battery cable.	—
Tire pressure monitoring system (TPMS)	The tire pressure monitoring system detection accuracy decreases.	—	Perform the tire pressure monitoring system initialization.	(See TIRE PRESSURE MONITORING SYSTEM INITIALIZATION PROCEDURE.)

Negative Battery Cable Disconnection

1. Switch the ignition to off.

2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 1.6].)

Negative Battery Cable Connection

Caution

• When tightening the negative battery cable, tighten it to the specified torque. If it is not tightened to the specified torque, the battery charging/discharging may be affected.

1. Connect the negative battery cable.(See BATTERY REMOVAL/INSTALLATION [MZR 1.6].)

2. Perform services which are required after connecting the negative battery cable. (See Required procedure after negative battery cable disconnection/connection.)

System name	Conditions after disconnecting the negative battery cable	Required procedure		Reference
System name	Conditions after disconnecting the negative battery cable	Before disconnecting negative battery cable	After connecting negative battery cable	Reference
Power window system	Reset to initial setting and auto-function is disabled.	—	Perform the power window system initial setting.	(See POWER WINDOW SYSTEM INITIALIZATION PROCEDURE.)
Sunroof system	Reset to initial setting and function is disabled.	—	Perform the sunroof system initial setting.	(See SUNROOF SYSTEM INITIALIZATION PROCEDURE.)
Clock and audio	Clock display and audio system memory are reset.	Verify the setting content.	Set the verified content before disconnecting negative battery cable.	—
Tire pressure monitoring system (TPMS)	The tire pressure monitoring system detection accuracy decreases.	—	Perform the tire pressure monitoring system initialization.	(See TIRE PRESSURE MONITORING SYSTEM INITIALIZATION PROCEDURE.)