● If an engineer uses medical electronic devices including heart pacemaker, cardioverter, defibrillator, the device can be only be used after its function being checked and confirmed before charging.

● During normal charge operation, an engineer who uses medical electronic devices including heart pacemaker, cardioverter, defibrillator cannot enter passenger compartment (including trunk).

High-voltage preventive measure

Warning:

● The electric vehicle has a high-voltage battery. If the operation on the vehicle and high-voltage parts is incorrect, there are risks of leakage of electricity, electric shock, or similar accidents. Thus, it is mandatory to follow correct procedures to check and maintain.

● Before disconnecting repair switch, please put the key on “LOCK” position or unplug the key.

● Disconnect repair switch before checking or maintaining high-voltage system. It is forbidden to close repair switch during the process of checking and maintenance. Before starting the operation on high-voltage system, be sure to wear insulated protection equipment, including gloves, shoes, and glasses.

● When a technician is operating high-voltage system, please ensure no one touching the vehicle. When there is no maintenance operation, please take insulated protection on the high-voltage sections to prevent anyone touching.

● When repair switch disconnects, it is forbidden that the key is at “ON” position or switched to “START” position.

High-voltage cable and safety sign

The color of high-voltage cable is orange and there are safety signs on the power battery assembly and other high-voltage parts. Do not touch these cables and parts.

Handling of high voltage terminals

When the connector of high-voltage cable is plugged out, please use insulated adhesive tape to bind up immediately.

Regulation for a person wearing medical electronic device

The vehicle has strong magnetic parts. If an engineer uses medical electronic device, such as electronic pacemaker, its function may be affected by strong magnetic parts. Thus, these people cannot carry out repair work.

Forbidden accompanying article during work

The vehicle has strong magnetic parts. Thus, during work it is forbidden to take metal articles which may cause short circuit or magnetic articles such us various bank cards which may be damaged.

Place “Repairing High-voltage Parts, No Touch!” warning sign

Before repairing high-voltage parts, please place “Repairing High-voltage Parts, No Touch” warning sign on the prominent position of the repaired vehicle to remind other people.

Precaution for removing 12V battery

Before removing 12V battery, turn the key to “ON” position, and then turn to “LOCK” position

Reminder:

● Though the key is at “LOCK” position, auto-recharge function of 12V battery may activate.

● After the key turns from “ON” to “LOCK”, auto-recharge function of 12V battery will not activate.

Precaution for supplemental restraint system "airbag" and "safety belt pretension"

Supplemental restraint system “airbag” and “safety belt pretension” is used together with front seat safety belts, which can reduce the damage to the driver and front passenger during collision. Supplemental restraint system consists of safety belt, driver airbag, and front passenger airbag. The detailed information of supplemental restraint system is included in the chapters of airbag system and seat safety belt.

Warning:

In order to avoid accidents, please abide by the following content:

● To avoid the failure of supplemental restraint system and considering that the risk of physical injuries will increase during collision if the system fails, all the service must be executed by JAC authorized dealer.

● Non-normative maintenance of supplemental restraint system including non-normative removal and installation may result in accidental trigger of the system and cause physical injuries. Regarding the method of removing airbag module, please refer to Airbag System chapter.

● Except for the operations in the service manual, please do not use electrical test device to test any circuit of supplemental restraint system. The color of harness and connector of supplemental restraint system is yellow or orange

Precaution for using power tool (pneumatic or electric) and hammer

● When power switch is at “ON” position and approach airbag diagnosis sensor or other sensors of airbag system, please do not use power tools or hammer on the sensor part area. Violent vibration may trigger these sensors and airbag to cause serious injuries.

● When using power tools or hammer, put the key at “LOCK” position, unplug the negative pole of 12V lead-acid battery, wait at least one minute, and then start maintenance.

Preparation work

Lubricant and coolant

Name	Usage	Remark
Refrigerant R-134a	Refrigeration cycle
Compressor lubricant RL68H	Compressor lubricant

Special tool

Name Tool	Picture	Tool Name	Picture
Digital multimeter		High strength invisible light
Removal pincher		Triple table
Halogen leakage detector		Color tracer syringe
Dye tracer R134a		Microthermometer
Positive flow controlling valve		Axle sealing protection equipment
Refillable recycling tank of 50pounds		Pressure test adapter
Lip shape seal removal tool for air conditioning system		O- ring seal removal tool
Valve core removal and installation tool		O-ring seal installation tool
Spring card plier		Spring card plier
Refrigerant recycling, regeneration, filling system		Passive testing amp
Heating gun		Insulated gloves
Insulated shoes		Aspirator bump

System instructions

componentparts

Defogger Location

Serial number	Component name	Function
1	BCM	Receive defrosting instruction, control defrosting relay in the low voltage terminal box, and execute defrosting timing control.
2	Touch panel(including rear defrosting button)	Send defrosting instruction to air conditioner controller through CAN communication, and then the indicator light is on.
3	Outside rearview mirror glass heater	To heat the glass through resistance wiring to prevent the rearview mirror from fog or frost.
4	Rear window glass heater	To heat the glass through resistance wiring to prevent the window glass from fog or frost.
5	Defrosting connector
6	Low voltage terminal box	The defrosting relay in the low voltage terminal box is controlled by BCM.

System

System principle

Defogger device mainly consists of rear defogging button, A/C controller, BCM, low voltage junction box, rear fogging heater, outside rearview mirror heater.

Operation Description

● A/C controller transmits rear window defogger switch signal to BCM.

● After BCM dealing, it controls defogging relay in low voltage junction box to be activated.

● After the relay is pulled in, the rear defrost heater and the exterior mirror heater start heating.

● When defogging function is on, defogging relay in low voltage junction box receives signal and feedback to A/C controller, A/C controller controls rear defogging indicating light to be on.

Timing function

● The BCM starts timing when the rear defrosting lamp lights. After twenty minutes, it controls to disconnect the defrosting relay in the low voltage terminal box. The defrosting stops working and rear defrosting lamp is put out.

● When the rear defrosting lamp is lit, close defrosting function manually within twenty minutes. If opening it again, the BCM starts timing.

Wire harness framework

framework

A26
A25

Connector information

Rear defrost heatingwire

Connector number	G14
Connector name	Rear defrost heating wire
Connector type	ST710506-3

Left front rearview mirror

Connector number	D02
Connector name	Left front rearview mirror
Connector type	68508-0811[Molex]（black）

Terminal number	Wire color	Signal name
6	LW	DE02cx Defrosting Power Supply for Rear View Mirror
7	B	DE3G rearview mirror defrosting and grounding

Right front rearview mirror

Connector number	D11
Connector name	Right front rearview mirror
Connector type	68508-0811[Molex]（black）

Terminal number	Wire color	Signal name
6	LW	DE02bx Defrosting Power Supply for Rear View Mirror
7	B	DE2G rearview mirror defrosting and grounding

Air conditioning controllerconnector

Connector number	M13
Connector name	A/C panel
Connector type	AMP1376113-1

Terminal No.	Wire color	Signal name
A25	BrV	BB07 rear defrost request
A26	WB	DE02a rear defrost feedback

Body control module C1

Connector number	M08
Connector name	Body control module C2
Connector type	284972-1（black）

Terminal No.	Wire color	Signal name
38	BrV	BB07

BCM模块C2

Connector number	M09
Connector name	Body control module C2
Connector type	316371-1(white)

Terminal number	Wire color	Signal name
29	Lg	DE03

Diagnosis

Malfunction of rear window defrosting

Diagnosis procedure

1 Check the defrosting button on the touch panel

Does it work smoothly？

If yes>>Refer to second

If no>>Repair or replace the touch panel

2 Check the defrosting relay

Does it work smoothly？

If yes>>Refer to the third

If no>>Repair or replace the defrosting relay

3 Check rear window glass heater

Does it work smoothly？

If yes>>Refer to the fourth

If no>>Refer to chapter of “Inspection and maintenance for rear window glass heater”

4 Operate again and confirm result

Does it work smoothly？

If yes>> Finish

If no>>Refer to the first.

Malfunction of outside rearview mirror glass

Diagnosis procedure

1 Check the defrosting button on the touch panel

Does it work smoothly？

If yes>>Refer to the second

If no>>Repair or replace the touch panel

2 Check the defrosting relay

Does it work smoothly？

If yes>>Refer to the third

If no>>Repair or replace the defrosting relay

3 Check the outside rearview mirror glass heater

Does it work smoothly？

If no>>Refer to the fourth

If no>>Repair or replace outside rearview mirror glass heater

4 Operate again and confirm result

Does it work smoothly？

If yes>>Finish

If no>>Refer to the first

Dismantling and installation

Rear window glass heater

Inspection and maintenance

Inspection

1 Use the direct voltage of the digital multimeter.

2 Make cycling test on middle voltage of each resistance fuse. The normal voltage is 6V.

3 If the resistance fuse is burned, the multimter shows voltage of 12V or 0V.

4 To locate the burning point, move digital multimeter from left to right along the resistance fuse. When the digital multimeter pen approaches the burning point, the measured value will beat.

Maintenance

Maintenance device

Conductive paint, ruler, pen, heating gun, alcohol, cotton cloth.

Maintenance procedure

1 Use a cotton cloth pained with alcohol to wipe the damaged resistance wire and its surrounding area.

2 Use the pen nib to dip conductive paint. (The conductive paint should be shaken evenly before it is used ).

3 Put a ruler on a glass along the damaged resistance wire, slightly coat the damaged position with conductive paint by a pen nib and cover the intact resistance wire about 5mm respectively by both sides of the burning point.

4 After maintenance is complete and conductive paint is solidified( about ten minutes), use a multimeter to check the damage repair effect.

Reminder:

When multimeter is testing, it is forbidden to touch the conductive paint repair position with hands or a tool.

5 When the test result is normal, use a heating gun to dry the repaired point. Keep the outlet of heating gun with the repaired point for more than 3cm and lasts about twenty minutes. If there is no heating gun available, you can choose to dry it by air which may last about twenty four hours.