Автомобили Chery: руководства по ТО — часть 11

9. Gearshift Lever Malfunction (Any)

P1772 without effective signal failure of switch or button switch

is depressed and held for above 72s OFF

Switch signal not identified

In event of switch damage:

System automatically enters into automatic mode

The brake pedal must be depressed at engine start

The system will automatically engage gear 1 while the brake pedal keeps depressed.

It’s not allowed to shift to reverse gear

If the system fails to identify the correct position of the gearshift lever, the output restore strategy may be realized while the

ECU is turned off

10. Automatic Selector Switch

P0790 without effective signal failure of switch or button switch is

depressed and held for above 72s OFF

System automatically enters into automatic mode

It’s not allowed to shift to reverse gear

11. Economic Mode Switch

P0881 without effective signal failure of switch or button switch is depressed

and held for above 72s OFF

Shift to normal mode

12. Steering Wheel Gearshift Button

P1749 signal above limit value short-circuit or short-circuit to

power supply signal above 4.5V ON

Signal less than limit value open-circuit or short-circuit to grounding wire

signal less than 0.49V

Without effective signal switch adhesion switch is depressed for above 72s

OFF

This switch will not be started for use

It’s not allowed to conduct the gearshift from the steering wheel

13. Engine Speed Sensor

P0725 without effective signal intermitted signal, electromagnetic interference

engine speed not equals to clutch plate speed

Malfunction occurrence in CAN bus

transmission

Without signal sensor not connected without speed signal during engine

running

It will automatically shift to idling status if the brake pedal is not depressed for above 1.8s

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14. Clutch Plate Speed Sensor

P0715 without effective signal intermitted signal, electromagnetic

interference engine speed not equals to clutch plate speed

With external confirmation only at ECU-OFF.

Without signal sensor not connected frication plate speed, output

shaft speed exceed the limit value

With external confirmation only at ECU-OFF.

Gearshift is limited, only capable of upshifting to gear 2 to the most extent

15. Vehicle Speed

P0720 without effective signal intermitted signal, electromagnetic

interference signal range out of the dynamic reception scope

Deduct the vehicle speed via the

engine speed and friction plate speed

as well as other auxiliary parameters.

Without signal sensor not connected actual vehicle speed at zero

Output shaft speed out of limit value

Gearshift is limited, only capable of upshifting to gear 2 to the most extent

16. Electromagnetic Valve EV1

P1750 acceptability short-circuit or short-circuit to power supply

malfunction information is stored in the IC

Open-circuit or short-circuit to ground

(Low speed choice)

Incapable of shifting to gear 1, gear 2 or reverse gear

17. Hydraulic pump drive

P1752 out of max value short-circuit or short-circuit to power supply the

similar

feedback

signal

not

coincides

with

the

parameter

mentioned above.

Open-circuit or short-circuit to ground

It’s not allowed for gearshift

18. Buzzer Drive

P1753 without signal sensor not connected the malfunction information is

displayed

in

integrated

drive circuit

Above upper limit open-circuit or short-circuit to power supply

Below lower limit open-circuit or short-circuit to ground

The buzzer is driven by the CAN bus

19. Drive Circuit Load

P1754 lower limit value system open-circuit battery voltage below 4V

Above limit value system short-circuit the voltage exceeds 5V after the

ignition key is turned off for

above 3s.

(ECU inside)

It’s not allowed for gearshift

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20. Starter Relay Drive

P1755 above limit value open-circuit or short-circuit to battery the similar

feedback signal not coincides with

the parameter mentioned above

Lower limit value open-circuit or short-circuit to ground

Short-circuit to ground or open-circuit, enters into safe mode after engine start

21. Entering into Safe Mode Pump after Engine Start.

P1769 without effective signal

relay short-circuit?

The deviation should not exceed 0.2bar

within 1000ms while the oil pressure

exceeds limit value 60bar. The system

The gearshift is subject to the pump motor temperature.

22. EV electromagnetic valve malfunction

P1756

P1757

P1758

It’s not allowed for gearshift

23. Brake Switch

P1760 without effective signal reception capability via CAN data cable (brake pedal

effective data=1)

When the engine is OFF and the transmission is engaged, if you want to start the engine with the gearshift lever at free

position, the transmission will automatically disengage, following with one sound alert.

24. Transmission CAN Data Cable

U1601 without effective signal no conversion the data package

can’t be converted normally

No information data cable off data cable off

Without effective signal storage module malfunction storage module

malfunction

It will automatically shift to idling status when the brake pedal is not depressed under engine working condition; in event of

storage malfunction, the system may turn off automatically.

25. Receiving Information from Engine CAN

U1701 without signal CAN malfunction

without byte, reception timeout

Without effective signal data package error length error of at least one data package

The running of engine system is not allowed to shift to gear 2 and will exit from the automatic mode.

26. Receiving Information from Body CAN

U1700 without signal CAN malfunction without byte,

reception timeout

Without effective signal data package error length error of at least one

data package

The running of engine system is not allowed to shift to gear 2.

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27. Secondary Processor

P1764 without effective signal malfunction the speed signal the

engine obtained from the primary processor

not coincides with that obtained from the

secondary sensor.

Key signal error read from the secondary

processor

The clutch position signal the engine obtained from the

primary processor not coincides with that obtained from the

secondary sensor.

Under the condition that the brake pedal is not depressed, the system will automatically shift to idling mode during the waiting

of working time.

28. Primary Processor

P1767 coincident malfunction acceptability transmission failure from

transmission

to

primary

processor

or

transmission of inconsistent data.

The system may turn off due to the interference of safe processor.

29. Transmission Earth

P1765 without effective signal acceptability there has relative high voltage

difference between before and after the sensor

solenoid

System off

30. Friction Auxiliary System

P1810 opening failure of friction plate acceptability opening failure of

friction plate

Closing failure of friction plate acceptability the friction plate will not close during the

gearshift

Friction plate overheating acceptability the system deems that the friction plate

temperature exceeds 250ºC.

In event that the opening failure of the friction plate or closing failure of friction plate during the gearshift, the gearshift is

subject to limitation.

31. Transmission Auxiliary System Malfunction

P1818 clutch disengagement speed acceptability

clutch

disengagement

speed beyond the control

Failure of clutch disengagement acceptability disengagement failure of

clutch

Gear selector error or clutch error level selection error during gearshift

Friction plate speed out of limit acceptability gearshift is that the 1

st

shaft

speed is too high

In event of disengagement failure or in event of speed error during engagement prompt or that the friction plate speed is out

of limit, the gearshift is subject to the limitation.

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