Руководство по ремонту электрооборудования кузова JAC J7

Overview Ⅰ Warning and Precautions 1 Warning and Precautions Definitions of "warning", "important note" and "attention" The diagnostic and maintenance procedures in this manual include general and specific "warnings", "important notices" and "cautions", and JAC is committed to providing maintenance information to assist the after-sales service technician in the diagnosis and maintenance system , so that the vehicle can run normally, but if the technician does not operate as recommended, some programs may pose a risk to the technician. "WARNING", "IMPORTANT NOTE" and "CAUTION" are prepared to prevent the occurrence of such hazards, but not all hazards are predictable.

This information is displayed in prominent positions in the maintenance manual. This information is prepared to prevent the following: ·Causing serious injury to people ·Vehicle damage ·Unnecessary vehicle maintenance ·Unnecessary parts replacement Improper repair or replacement of vehicle parts The definition of "warning" When you encounter a "warning", it asks you to take the necessary action or to prohibit the action taken. If you ignore "warning", you may have the following consequences: ·Causing serious injury to people If the vehicle is improperly repaired, it will cause serious personal injury to the driver and / or passenger of the vehicle.

The definition of "Important Note” "Important note" requires special attention to the measures necessary or prohibited. If you ignore the "IMPORTANT NOTE", it will lead to the following consequences: ·Vehicle damage ·Unnecessary vehicle maintenance ·Unnecessary parts replacement ·Abnormal operation or performance of the system or component being repaired ·Damage related systems or components ·Damage fasteners, basic tools or special tools ·Engine coolant, lubricating oil or other essential liquid leakage The definition of "Attention” The "CAUTION statement emphasizes the necessity of a diagnostic or maintenance procedure, and the purpose of the "attention" statement is as follows:

Clear procedure Provide supplementary information for completing a program Clarify the reason for an operation according to the recommended procedure Warnings and precautions 2- Overall i

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Ⅱ Vehicle Inspection 1 Items should be checked when operating vehicle Honk operation. Please press the honk occasionally to ensure the honk is working well. Check all buttons. Operation of the brake system While braking, please check whether abnormal noise/sound, increase of brake pedal’s stroke or repetitive lane departure exists. Furthermore, if the brake warning light keeps lighting or flickering, some failures may exist inside brake system. 2 Items should be checked when fuel-charging Oil/fluid loss of all systems except for windshield washer means the system has failure. Please check and repair system immediately.

Check the liquid level of cleaning agent of front windshield glass Check the liquid level of cleaning agent in liquid reservoir, and add cleaning agent if necessary. 3 Items should be checked at least once a month Operation of vehicle light Check the operation of license lamp, headlamp (low/high beam), parking lamp, fog lamp, tail lamp, brake lamp, steering lamp, reversing lamp and hazard warning lamp. Oil leak check After the vehicle has been parked for a period of time, please check regularly whether water, engine oil, fuel or other fluid exist under the vehicle. Water-dripping is a normal phenomenon when the air conditioning system is used .

if fuel leak or smoking is detected, please check reasons and eliminate fault timely. 4 Items should be checked at least twice a year Door and window seal lubrication Apply a layer of silicone grease to the seal with a clean cloth. 5 Items should be checked at least once a year Status and operation of safety belt Check safety belt system, including the strap, buckle, lock plate, retractor, guide ring and fixing device. Storing of spare tire and lifting jack Beware of the crunching sound appeared in vehicle’s rear part. Spare tire, lifting device and tools must be fixed all the times. Please use engine oil to lubricate the ratchet or spiral device of lifting jack after use.

Key lock maintenance Maintenance of vehicle body’s lubrication Lubricate key cylinder Lubricate all hinges on vehicle doors, engine cover, oil filler cap, tail door, plunger latch, glove box and control console. All components of folded seats need to be lubricated. Rinsing of vehicle’s bottom part First, loosen the deposit sediment gathered around vehicle’s sealed area. Then use clean water to rinse vehicle’s bottom. After winter, the vehicle’s bottom should be cleaned once a year at least. Rinsing vehicle’s bottom can remove the corrosive material that Vehicle inspection 2- Overall i

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2 Troubleshooting Procedure Engine can not be started 3- Battery assembly Starting Starting and charging system Steps Inspection content Solution Decision specification Next step Yes No 1 Confirm the fault phenomenon Set the ignition switch on ST position, start the engine. Confirm if the engine rotates Next step Turn to step 4 2 Confirm the rotation situation of the engine Set the ignition switch on ST position, start the engine; read the engine rotation speed according to the instrument speed meter or diagnosis data. whether the engine rotation speed reaches the starting rotation speed. Check the engine ignition system and fuel supply system.

Next step 3 Check the battery voltage Set the ignition switch on ST position, start the engine, measure the battery voltage. Standard voltage value:

larger than 10.5V Replace the starter Check the charging system 4 Check the starter electromagnetic switch motion Set the ignition switch on ST position, start the engine to check the starter electromagnetic switch motion whether the starter electromagnetic switch works Next step Turn to step 8 5 Check the engine mechanical running Check the engine and belt drive system mechanical clamping stagnation(engine clamping stagnation, generator clamping stagnation) situation If it has clamping stagnation Repair the clamping stagnation part Next step 6 Check resistance between the starter and the power supply Measure the circuit resistance between the battery and the starter motor. Standard value:

Next step Check and repair the cable 7 Check the starter electromagnetic switch wire harness. Check if the starter electromagnetic switch wire harness has looseness, corrosion and damage. If the wiring connection is normal or not? Next step Check and repair the cable 8 Check the starter control power supply voltage. Set the ignition switch on ST position, measure the voltage of starter wiring connector terminal. Standard voltage value: 11V ~ 14V Replace the starter Next step 9 Check the starter control power supply wire harness resistance Measure the voltage value between the starter relay ER03 terminal 87 and starter wiring connector B08 terminal 1. Standard value:

Next step Check and repair the cable 10 Check the starter relay motion Set the ignition switch on ST position, check the starter relay motion. If the starter relay actuates Next step Turn to step 14

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2) Disconnect start button wire harness connector. 3) Take off the engine start button. 2 Installation 1. Install engine start button. 1) Install engine start button. 2) Connect start button wire harness connector. 3) Install the upper trim panel assembly of secondary dashboard 2). Connect the battery negative cable. 3. Close the engine compartment cover Ⅷ Electronic Steering Column Lock 1 Disassembly 1. Open the engine cover 2. Disconnect the battery negative cable. 3. Remove the instrument cluster cover assembly, refer to the instrument cluster cover assembly 4.

Disassemble the steering column housing lower and upper shell, refer to steering column housing Electronic steering column lock 4- PEPS sy PEPS sy stem

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