Check Input Shaft Speed Sensor Signal; Check Input Shaft Speed Sensor; Check The Retainer Of Deceleration Clutch - Chery Tiggo 2009 Service Manual

6.

CHECK INPUT SHAFT SPEED SENSOR SIGNAL

• Connect the TCM and sensor electrical connector.
• Start the vehicle and perform the following:
− Engine: 2000 RPM
− Vehicle: 50 km/h
− Gear: 3
• Check sensor signal between sensor terminal 2 and ground in the sensor electrical connector E-088 with the
X-431 or oscilloscope.
• Make sure the wave shape is normal and signal voltage is fluctuating from 0 - 5 V.
Is the check result normal?
Yes >>
Go to step 9.
No >>
Go to the next step.
7.

CHECK INPUT SHAFT SPEED SENSOR

• Perform the following:
− Loosen the bolt of the sensor.
− Remove the sensor.
− Visually inspect the sensor for missing or chipped teeth.
Is the check result normal?
Yes >>
Replace the input speed sensor.
Monitor the input speed sensor signal on the X-431 or oscilloscope.
− If the input speed sensor signals were normal, the system is OK.
− If the input speed sensor signals were still irregular or missing, go to step 8.
No >>
Replace input speed sensor.
8.

CHECK THE RETAINER OF DECELERATION CLUTCH

• Disassemble and inspect the A/T and replace the retainer for the deceleration clutch.
• Check for a chipped and damaged signal retainer for the deceleration clutch.
Is the check result normal?
Yes >>
Go to the next step.
No >>
Replace the retainer for the deceleration clutch.
Monitor the input speed sensor signal on the X-431 or oscilloscope.
If the signal pulse is not normal, repair the noise interference.
9.
CHECK DTC
• With the X-431 scan tool, read TCM DTCs.
• Refer to DTC Confirmation Procedure .
Is the check result normal?
Yes >>
The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
No >>
Replace the TCM.
Chery Automobile Co., Ltd.
DIAGNOSIS & TESTING
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167
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