mode only work in A Mode ,In mode , driver can switch mode in any time. The default Mode is mode can provide more power , so engine will work at about 1300rpm~1800rpm and vehicle have good performance of climbing and acceleration. Driver should choose a suitable mode for current condition . mode. Switch between E and P mode via mode is a better choice in the challenging condition such as soft road , muddy road , cross-country road and mountainous area ;
Low mode
Engine protection & Clutch protection
Engine protection A upshift will be triggered if engine over speed , this usual occurrence in downhill road . Clutch protection Launch frequently with full accelerator ,
4. Maintenance
Diagnostic tools
In order to update AMT SW and diagnose AMT fault , you need following tools: PC , Diagnostic box ; Wire used to connect PC and diagnostic box ; Wire used to connect diagnostic box and OBDII connector. Following table shows the description of OBD II and DB9 connector C AN 1 _ L
C AN 1 _ H
VCC(+24)
GN D
PIN4
PIN5
PIN1
PIN2
DB9
PIN14
PIN6
PIN16
PIN4&PIN5
OBDII
SW Update
Usually , we issues new AMT SW every year . By using diagnostic tools , you can update the SW. Before update , the following must be ensured
Switch on the KL15 but don’t ignite the engine
Parking brake is set Don’t switch off supply voltage while download in progress Make sure that a power supply at least 23V is provided Ensure an air supply pressure of at least 7 Bar Don’t interrupt the diagnostic connection while download is in progress
SW Update Following steps show how to update AMT SW: 1. Connect PC , diagnostic box and OBD II connector ; 2. Open diagnostic software; 3. Click “system” “ECU update”;
SW Update 4 . In the popups , click “read from file ”, then find the SW which you want to download;
SW Update 5 . Click “write to ECU” , then in the popups , enter your user ID and PIN code , click “OK” , start to download.
SW Update 6. Ignition off for 1 min after download completed.
Self-learn
Self-learning is necessary after update SW . There are 2 self-learning methods.one is self-learn with diagnostic box , another is self-learn without diagnostic. No matter which method you use , the following condition must be fulfilled before self-learning:
Vehicle stops in flat road and parking brake is set Engine stops Air pressure of AMT is over 7 bar
Self-learn with diagnostic box Establish diagnostic connection ; Click “start-up” “vehicle test”
Self-learn with diagnostic box Select big learning procedure , click “start ” ”learning ” , learning procedure is active.
Self-learn with diagnostic box During the learning procedure , when dashboard shows that current gear is neutral , ignite the engine . A popup window will show transmission information after learning procedure finished .
Self-learn with diagnostic box If self-learn is fail , popup window will show the error code in the column of tech-in error . You can get the information about the error in error code list. After troubleshooting , do the self –learning again . Compare the values in the popup window with the value in the following table after self-learning successful , if there is a obvious gap between them , do the self-learning again. Range max-range min Gear max-gear neutral
28mm
Gear neutral-gear min
Split max-split min
15mm
7mmm
15mm
Selection max-selection mid
Selection mid-selection min
Clutch max-clutch min
10mm
13mm
22mm
Note: this table is only fit the 16 speed gearbox . In 16 speed gearbox , selection intermediate position 2 and selection intermediate position 1 are the same.
Self-learn through SLU Before start a self-learning , you must check the self-learn precondition . The following steps shows how to do a self-learning through SLU. ① Switch off the key for 1 min then , press the
Oil Oil grade The oil grade we recommend is 80W-90GL4/5 Oil volume The oil level must reach up to the lower edge of the of overflow aperture. Oil change interval Change the oil in the first 5,000 kilometers ; after this , Check whether the oil is enough every 10,000 kilometers and change oil every 50,000 kilometers .
To ensure a good performance of transmission , the oil grade , oil change interval and oil quantity must be observed . Only vehicle stops in flat road and transmission is cold you can check and change oil . Oil overflow aperture
Advices
Hold on accelerator pedal position when you launch vehicle ;
You don’t need to release accelerator pedal when system is executing a shift ;
Launch frequently on big slope will damage the clutch driver should avoid this as possible ;
No matter which operation mode you are using , downshift manually before climbing big slope ;
Although < E > mode can satisfy most condition , but sometimes < P > mode is necessary , driver should change the operation mode according current condition ;
For better fuel consumption , you can press accelerator pedal or brake pedal gradually when accelerating or decelerating ;
5. Troubleshooting
Troubleshooting When AMT malfunction , you need to do troubleshooting , following steps show the procedure . 1. Establish diagnostic connection , click “Message ” ”diagnostic memory” , the failure is showed in popup windows .
Troubleshooting 2 .The red is active failure ，the blues are inactive failure . Click“delete”and remove the inactive failure . Select a failure and click “Info” , you can get information about how to troubleshoot.
Also , you can read error code from dashboard and get help from error code list .
Troubleshooting
3. ABS or engine’s failure may lead to an AMT failure , remove these failure first , then check if the AMT recover from failure . 4. Troubleshoot AMT’s failure 5. When finishing the troubleshooting , undertake a test run . Note: It’s necessary to do a self-learning after change or disassemble mechanical part of AMT.
Troubleshooting The following pictures show some function of diagnostic tool which are very useful for troubleshooting. Click “measure value ” “ shift lever ” , you can test if SLU work well .
Troubleshooting Click “measure value ” “transmission ” , the popup window will give you some current value about AMT.
Troubleshooting You can get current value through click “measure value ” ”display measures value ” too .
Troubleshooting Click “output ” ”control ” ,in the popup window, you can control the actuator
or valve . Secure than vehicle is secured against rolling ,power supply is ok and compressed air is above 7bar.
Advices about Troubleshooting
The method used to measure the transmission’s current value and control the
actuator show above is very useful , you can compare the current value with following table to check if the transmission is ok. Range max-range min Gear max-gear neutral
28mm
Gear neutral-gear min
Split max-split min
15mm
7mmm
15mm
Selection m ax-selection mid
Selection m id-selection m in
Clutch m ax-clutch min
10mm
13mm
22mm
If the actuator in wrong position or shaft speed is not reliable , the current gear will be invalid , in this condition , you need to check the wire , speed sensor , distance sensor ,air pressure.
Harness wear out easily , so pay more attention on it . When need to do self-learning , use the small self-learning procedure unless you update the SW.
Case 1 The feedback shows that any shift request is rejected ： Establish diagnostic connection .
In the measurement window ，we can find that the out-shaft speed is 729rpm , but vehicle is stop and current gear is neutral , there must be something wrong with the sensor or wire .
Case 1 Check wire wire multimeter according with circuit diagram .We found than the wire of speed sensor is short to power . At last , we found the wire wore out and replace with a new one. Then transmission works well
Case 2 The driver told me that transmission didn’t work well , current gear in dashboard displayed an impossible value . We know that if actuator in a wrong position or shaft speed is reliable , current gear will be invalid . So inspect if there is some wear-out with the wire, then check the distance sensor and speed sensor , at last ,check the mechanical part . According the step above ,we found that the counter shaft sensor wore-out , replace with a new one shows and putthat a thin and the interface for spend senor installing . Test run the gasket failure between disappearsensor .
Case 3 The driver told me than he can’t shift between singular gear and even gear. Form this we know there may be something wrong with the splitter group Establish diagnostic connection , obverse the current value , it seems that everything is ok. Then drive the splitter actuator to another position , and compare the value with the table mentioned before , and the result shows than split travel is not correct . When driving the actuator, we can hear the sound of valve. that is to say , wire and actuator are ok. So we need to check the air line and the air pressure . If need ,disassemble transmission.
Case 3 Air line and air pressure is ok. At last , we found the cylinder which used to shift between singular gear and even gear is broken . Change top cover and undertake a test run , everything is ok.
THANKS! 69