Chery B11. Manual — part 227

Chery·Maintenance Manual for Oriental Son

Automatic Transmission

the first gear
If the transmission ratio of the first gear does

at the

Input shaft speed sensor fault

ult

ar fault

not conform to the input of input shaft speed
sensor and the output of output shaft speed
sensor is increased, then Code 41 will be
output. If Code 41 is output for 4 times
running, then the gearbox will be locked
third gear as a protection.

Output shaft speed sensor fault
Deceleration clutch guard ring fa
Transfer case drive gear or driven ge
Low/reverse gear braking system fault
Deceleration clutch system fault
Noise interference

Code 22 Non-conforming transmission ratio of

Possible cause

MUT-Ⅱ

iag code

Is Troubleshooting Code 23
output?

Check output shaft speed
sensor system (refer to
Page 23-15)

Replace input shaft speed sensor

Check fault symptoms

A/T overhaul: replace
deceleration clutch guard ring

Check fault symptoms

S-slfD

Eliminate noise interference

Check fault sym toms

p

A/T overhaul: replace transfer
case drive gear and driven gear

Check fault sym toms

p

Eliminate noise interference

Yes

No

No

Abnormal

Normal

Normal

Abnormal

Abnormal

Abnormal

Ye

Abnor

Abnormal

s

MUT-Ⅱ S-slfDiag code
Is Troubleshooting Code
22 output?

Check input shaft speed
sensor system (refer to
Page 23-14)

Measure the output wave form of input shaft
speed sensor with an oscilloscope
Connect with connector B-68 and measure the
voltage between A/T-ECU 31 and 43.
Engine: 2,000rpm (about 50km/h)
Gearbox: third gear
Normal: e.g. one kind of wave form on Page
23-42 (using the checking sequence of the
oscilloscope) is output (fluctuate between 0 and
5V) and there is no noise interference for the
wave form.

Measure the output wave form of output shaft speed
sensor
Connect with connector B-68 and measure the voltage
between A/T-ECU 32 and 43.
Gearbox: third gear
Normal: e.g. one kind of wave form on Page 23-42
(using the checking sequence of the oscilloscope) is
output (fluctuate between 0 and 5V) and there is no
noise interference for the wave form.

Replace output shaft speed sensor

A/T overhaul
Check deceleration clutch system (Code 42 or
43 is output or no troubleshooting code is
output)
Check low-speed and reverse gear braking
system (Code 46 is output or no code is output)

76

Chery·Maintenance Manual for Oriental Son

Automatic Transmission

the second gear
If the transmission ratio of the second gear

be

at the

Input shaft speed sensor fault

ult

ar fault

lt

does not conform to the input of input shaft
speed sensor and the output of output shaft
speed sensor is increased, then Code 41 will
output. If Code 41 is output for 4 times
running, then the gearbox will be locked
third gear as a protection.

Output shaft speed sensor fault
Deceleration clutch guard ring fa
Transfer case drive gear or driven ge
Second or reverse gear braking system fault
Deceleration clutch system fau
Noise interference

Code 43 Non-conforming transmission ratio of

Possible cause

MUT-II S-slfDiag code
Is Troubleshooting Code 22
output?

MUT-Ⅱ S-slfDiag code
Is Troubleshooting Code 23
output?

Measure the output wave form of input shaft
speed sensor with an oscilloscope
Connect with connector B-71 and measure the
voltage between A/T-ECU 31 and 43.
Engine: 2,000rpm (about 50km/h)
Gearbox: third gear
Normal: e.g. one kind of wave form on Page
23-42 (using the checking sequence of the
oscilloscope) is output (fluctuate between 0 and
5V) and there is no noise interference for the
wave form.

Measure the output wave form of output shaft
speed sensor
Connect with connector B-68 and measure the
voltage between A/T-ECU 32 and 43.
Gearbox: third gear
Normal: e.g. one kind of wave form on Page
23-42 (using the checking sequence of the
oscilloscope) is output (fluctuate between 0 and
5V) and there is no noise interference for the
wave form.

A/T overhaul
Check deceleration clutch system (Code 41 or
43 is output or no troubleshooting code is
output)
Check second-gear braking system (Code 44 is
output or no code is output)

Check input shaft speed sensor
system (refer to Page 23-14)

Check output shaft speed sensor
system (refer to Page 23-15)

Replace input shaft speed sensor

Check fault symptoms

A/T overhaul: replace deceleration clutch
guard ring

Check fault symptoms

Eliminate noise interference

Replace output shaft speed sensor

Check fault symptoms

A/T overhaul: replace transfer
case drive gear and driven gear

Check fa

ptoms

ult sym

Eliminate noise interference

Abnormal

Abnromal

Normal

Abnormal

Normal

No

Abnormal

Abnormal

No

Yes

Yes

77

Chery·Maintenance Manual for Oriental Son

Automatic Transmission

the third gear
If the transmission ratio of the third gear does

at the

Input shaft speed sensor fault

ult

ar fault

not conform to the input of input shaft speed
sensor and the output of output shaft speed
sensor is increased, then Code 43 will be
output. If Code 43 is output for 4 times
running, then the gearbox will be locked
third gear as a protection.

Output shaft speed sensor fault
Deceleration clutch guard ring fa
Transfer case drive gear or driven ge
Overdrive clutch system fault
Deceleration clutch system fault
Noise interference

Code 44 Non-conforming transmission ratio of

Possible cause

MUT-Ⅱ S-slfDiag code
Is Troubleshooting Code 22
output?

MUT-Ⅱ S-slfDiag code
Is Troubleshooting Code
23 output?

Measure the output wave form of input shaft
speed sensor with an oscilloscope
Connect with connector B-71 and measure the
voltage between A/T-ECU 31 and 43.
Engine: 2,000rpm (about 50km/h)
Gearbox: third gear
Normal: e.g. one kind of wave form on Page
23-42 (using the checking sequence of the
oscilloscope) is output (fluctuate between 0 and
5V) and there is no noise interference for the
wave form.

Measure the output wave form of output shaft
speed sensor
Connect with connector B-68 and measure the
voltage between A/T-ECU 32 and 43.
Gearbox: third gear
Normal: e.g. one kind of wave form on Page
23-42 (using the checking sequence of the
oscilloscope) is output (fluctuate between 0 and
5V) and there is no noise interference for the
wave form.

A/T overhaul
Check deceleration clutch system (Code
41 or 42 is output or no troubleshooting
code is output)
Check overdrive clutch system (Code 44
is output or no code is output)

Check input shaft speed
sensor system (refer to Page
23 14)

Check output shaft speed
sensor system (refer to Page
23 15)

Replace input shaft speed sensor

Check fault symptoms

A/T overhaul: replace deceleration clutch guard ring

Check fault sym toms

p

Eliminate noise interference

Replace output shaft speed sensor

Check fault symptoms

A/T overhaul: replace transfer
case drive gear and driven gear

Check fault sym toms

p

Elim

Yes

No

No

Abnormal

Normal

Abnormal

Normal

Abnormal

Abnormal

Abnormal

Abnormal

Yes

inate noise interference

78

Chery·Maintenance Manual for Oriental Son

Automatic Transmission

the fourth gear
If the transmission ratio of the first gear does

at the

Input shaft speed sensor fault

ult

ar fault

not conform to the input of input shaft speed
sensor and the output of output shaft speed
sensor is increased, then Code 44 will be
output. If Code 44 is output for 4 times
running, then the gearbox will be locked
third gear as a protection.

Output shaft speed sensor fault
Deceleration clutch guard ring fa
Transfer case drive gear or driven ge
Second-gear braking system fault
Overdrive clutch system fault
Noise interference

Code 46 Non-conforming transmission ratio of

Possible cause

MUT-Ⅱ S-slfDiag code
Is Troubleshooting Code 22
output?

MUT-Ⅱ S-slfDiag code
Is Troubleshooting Code
23 output?

Measure the output wave form of input shaft
speed sensor with an oscilloscope
Connect with connector B-71 and measure the
voltage between A/T-ECU 31 and 43.
Engine: 2,000rpm (about 50km/h)
Gearbox: third gear
Normal: e.g. one kind of wave form on Page
23-42 (using the checking sequence of the
oscilloscope) is output (fluctuate between 0 and
5V) and there is no noise interference for the
wave form.

Measure the output wave form of output shaft
speed sensor
Connect with connector B-68 and measure the
voltage between A/T-ECU 32 and 43.
Gearbox: third gear
Normal: e.g. one kind of wave form on Page
23-42 (using the checking sequence of the
oscilloscope) is output (fluctuate between 0 and
5V) and there is no noise interference for the
wave form.

A/T overhaul
Check second-gear braking system (Code 42 is
output or no troubleshooting code is output)
Check overdrive clutch system (Code 43 is
output or no code is output)

Check input shaft speed
sensor system (refer to Page
23-14)

Check input shaft speed
sensor system (refer to Page
23 15)

Replace input shaft speed sensor

Check fault symptoms

A/T overhaul: replace deceleration clutch
guard ring

Check fault symptoms

Eliminate noise interference

Replaceoutput shaft speed sensor

Check fault sym toms

p

A/T overhaul: replace transfer
case drive gear and driven gear

Check fault sym toms

p

Elim

Yes

No

No

Abnormal

Normal

Abnormal

Normal

Abnormal

Abnormal

Abnormal

Abnormal

Yes

inate noise interference

79