Vehicle Power Supply
Precaution for Technicians Using Medical Electric
Key Part Check before Maintenance and Repair
Precautions for SRS "Air Bag" and "seat belt pre-tensioner
Precautions for removing 12V battery
Precaution for Technicians Using Medical Electric
Operation Prohibition
Warning：
● Parts with strong magnet is used in this vehicle.
● Technicians using a medical electric device such as pacemaker must never perform operation on the vehicle, as magnetic field can affect the device function by approaching to such parts.
Normal charge precaution
Warning：
● If a technician uses a medical electric device such as an implantable cardiac pacemaker or an implantable cardioverter defibrillator, the possible effects on the devices must be checked with the device manufacturer before starting the charge operation.
● As radiated electromagnetic wave generated by on board charger at normal charge operation may effect medical electric devices, a technician using a medical electric device such as implantable cardiac pacemaker or an implantable cardioverter defibrillator must not enter the vehicle compartment (including trunk) during normal charge operation.
Precaution at telematics system operation
● If a technician uses implantable cardiac pacemaker or implantable cardioverter defibrillator (ICD), avoid the device implanted part from Communication device.
● The electromagnetic wave of TCU might affect the function of the implantable cardiac pacemaker or the implantable cardioverter defibrillator (ICD), when using the service, etc.
● If a technician uses other medical electric devices than implantable cardiac pacemaker or implantable cardioverter defibrillator (ICD), the electromagnetic wave of TCU might affect the function of the device. The possible effects on the devices must be checked with the device manufacturer before TCU use.
Key Part Check before Maintenance and Repair
Check the high-voltage system, and ensure the high-voltage system is powered off before starting the maintenance work, and disconnect the battery switch.
If the timer air conditioner or timer charge is set, the high voltage system starts automatically even when the power switch is in OFF state.
Precautions for SRS "Air Bag" and "seat belt pre-tensioner
Supplemental Restraint System (SRS) "Air Bag" and "seat belt pre-tensioner" are used on the front seat belts, which can help to reduce the dangers or serious injury of the driver and the front passenger in certain type of collisions. The relevant information of safe usage of the system are included in the SRS and Safety Belt Section of the Service Manual.
Warning:
● In order to prevent accidents, please follow the below points：
● Avoid the deactivation of SRS. Its failure will increase the personal injury caused by the airbag collision in the major collision accident. All the repairs must be done by the authorized dealer of JAC.
● Improper repair, including wrong removal and installation of SRS system, will make the system unable to activate and cause personal injury. Regarding the spiral cable and airbag modules, please refer to "SRS AIR BAG".
● Unless it is allowed in Service Manual, please do not use the electronic test equipment on the relevant circuit of SRS. The harness of SRS uses yellow or orange harness or harness connector, which can be easily recognized.
Precautions for using power tools (air or electric power) and hammers.
● When the power switch is turned on, do not use the pneumatic or electric tools or hammer to hammer the surrounding areas of the airbag diagnostic sensor or airbag system sensors. Strong vibration may activate the sensors and unfold the air bag, which will cause serious injuries.
● When using the pneumatic or electric tools or hammer, please switch off the power always, unplug the 12V lead-acid battery pile head, and wait at least 1 minute and then repair.
Precautions for removing 12V battery
Before removing the 12V battery, please turn the power switch to the ON position, then turn to the LOCK position.
Tips：
● When the power switch is on OFF position, the 12V automatic charging control system of the battery may start.
● When turning the power switch from ON position to LOCK position, the 12V automatic charging control system of the battery will not start.
Common Precautions
● Before the serving, which is not need to use the power supply: turn the power switch to LOCK position, disconnect the 12V storage battery negative terminal.
● After disconnecting 12V storage battery negative terminal, the storage memory of radio and other control devices will be deleted.
● Place the removed components according to the assembly-oriented position and order.
● If necessary, use authorized binder、sealant or equivalent product.
● In order to repair the vehicle safely and efficiently, right use of hand tools、power tools(only for removal) and special tools is necessary.
● Before Servicing：
● Use suitable cover to cover the wheel fender、interior and carpet. Attention, do not use the key、fastener or the like to scratch the paintwork.
Preparations
|
Tool |
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Instructions |
|
Power Tool |
|
Install and remove vehicle power supply |
Components Position
Removal
|
1. Open engine compartment cover 2. Disconnect battery negative cable. Refer to Battery Cable Disconnection and Connection 3. Remove Vehicle Power Supply 1). Pry off vehicle power supply 2). Disconnect harness connector of vehicle power supply. 3). Take down vehicle power supply. |
|
Installation
|
1. Installation of Vehicle Power Supply 1). Connect harness connector of vehicle power supply. 2). Install vehicle power supply into mounting hole. 2. Connect battery negative cable 3. Close front compartment cover |
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Vehicle Power Supply Inspection
|
Step |
Countermeasures |
Normal Results |
Abnormal Results |
|
1 |
Insert vehicle power supply into power supply socket, stop this operation until you hear clicking sound |
As the negative pole is charged with electricity, vehicle power supply will skip to the edge of vehicle power supply socket |
Vehicle power supply does not work |
|
2 |
|
Vehicle power supply lamp is ON |
Vehicle power supply goes out |
Vehicle power supply is out of work
|
Step |
Countermeasures |
Yes |
No |
|
1 |
Check fuse Does the fuse blow out |
To Step 4 |
To Step 2 |
|
2 |
Connect the positive and negative terminals with a test lamp to check out whether there is electricity or not Is the test lamp ON |
To Step 5 |
To Step 3 |
|
3 |
Is vehicle power supply lamp ON |
To Step 6 |
To Step 7 |
|
4 |
Replace fuse |
— |
To“System Inspection” |
|
5 |
Replace vehicle power supply |
— |
To“System Inspection” |
|
6 |
Replace vehicle power supply bulb |
— |
To“System Inspection” |
|
7 |
Repair the connection with bad contact |
— |
To“System Inspection” |