2009 CHERY TIGGO engine

Downloaded from www.Manualslib.com manuals search engine Diagnostic Procedure
1.CHECK A/T OUTPUT SIGNAL
• With the scan tool, select view DTC and data stream for A/T.
• Vehicle start and read out the value of OUTPUT SPEED SENSOR.
ITEM CONDITIONDISPLAY
VALUE
Output speed sensor During driving Approximately
matches the
speedometer reading.
Is the check result normal?
Ye s>>The condition that caused this DTC is intermittent (See Diagnostic Help in Section 08 Transaxle &
Transfer Case).
No
>>Go to the next step.
2.CHECK OUTPUT SHAFT SPEED SENSOR POWER SUPPLY
• Stop vehicle and turn ignition switch off.
• Disconnect output shaft speed sensor connector.
• Turn ignition switch on.
• Check sensor power supply between sensor termi-
nal 3 and ground in the sensor electrical connector
E-089.
• Voltage should be more than 12 V.
Is the check result normal?
Ye s>>Go to step 4.
No
>>Go to the next step.
DIAGNOSIS & TESTING
LTSMD080006
08–170Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3.DETECT MALFUNCTIONING PART
• Check the following:
Harness connectors A-102, E-105
Body fuse and relay box H13
Fuse 3 (10A)
Harness for an open or short between output shaft speed sensor and fuse
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the open circuit or short to ground or short to power in harness or connectors.
4.CHECK OUTPUT SHAFT SPEED SENSOR SIGNAL CIRCUIT
• Check sensor signal circuit between sensor terminal 2 and ground in the sensor electrical connector E-088.
• 5 V should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the open circuit or short
to power or short to ground.
5.CHECK OUTPUT SHAFT SPEED SENSOR GROUND CIRCUIT
• Turn ignition switch off.
• Disconnect TCM connector.
• Check for harness continuity between the following terminals:
OUTPUT
SPEED
SENSOR
CONNECTOR TERMINAL TCM
CONNECTOR TERMINAL CONTINUITY
13
9Yes
• Check the harness for short to power and short to ground.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace circuit for an open or short to power or short to ground.
DIAGNOSIS & TESTING
LTSMD080061
08
08–171Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 6.CHECK OUTPUT SHAFT SPEED SENSOR SIGNAL
• Connect TCM and sensor 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-089 with 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?
Ye s>>Go to step 9.
No
>>Go to the next step.
7.CHECK OUTPUT SHAFT SPEED SENSOR
• Perform the following:
Loose the bolt of the sensor.
Remove the sensor.
Visually inspect the sensor for missing or chipped teeth.
TERMINAL NO. RESISTANCE(25°C)
1-2 Except 0 or
1-3
2-3
Is the check result normal?
Ye s>>Replace the output speed sensor with a known good one.
Monitor the output speed sensor signal on the X-431 or oscilloscope.
If the output speed sensor signals were normal, the system is OK.
If the output speed sensor signals were still irregular or missing, go to step 8.
No
>>Replace output speed sensor.
8.CHECK TRANSFER CASE DRIVEN GEAR AND DRIVE GEAR
• Disassemble and repair the A/T and replace or repair the transfer case driven gear and drive gear.
• Check for a chipped and damaged signal gear of the transfer case driven and drive gear.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace or repair the transfer case driven gear and drive gear.
Monitor the output speed sensor signal on the X-431 or oscilloscope.
If the signal pulse is not normal, repair the noise interference.
DIAGNOSIS & TESTING
08–172Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 9.CHECK DTC
• With the X-431 scan tool, read TCM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC 23 still present?
Ye s>>Replace the TCM.
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
08
08–173Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 26 - Brake Pedal Position Switch Circuit Malfunction
DIAGNOSIS & TESTING
LTSMW080008T
08–174Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine On Board Diagnostic Logic
•Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSES
26 Brake pedal position
switch circuitmalfunction Vehicle is driving The brake switch is
on while vehicle is driving •
Brake switch
• Harness or
connectors (The
sensor circuit is open
or shorted)
• TCM
DTC Confirmation Procedure:
Before performing the following procedure, confirm that battery voltage is more than 12 V.
• Connect the X-431 scan tool to the Data Link Connector (DLC) - use the most current software available.
• After connection, press POWER key to start X-431.
• Turn ignition switch on, with the scan tool, view and erase stored DTCs in the TCM.
• Start engine then select Dposition.
• Drive the vehicle.
• With the scan tool, select view DTC and data stream.
• If the DTC is detected, the DTC condition is current. Go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help and Intermittent DTC Trou-
bleshooting in Section 08 Transaxle & Transfer Case for more information).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.CHECK BRAKE PEDAL POSITION SWITCH SIGNAL
• With the scan tool, select view DTC and data stream for A/T.
• Start vehicle and read out the value of STOP LAMP SWITCH.
ITEM CONDITIONDISPLAY
VALUE
Stop lamp switch During driving OFF
Is the check result normal?
Ye s>>The condition that caused this DTC is intermittent (See Diagnostic Help in Section 08 Transaxle &
Transfer Case).
No
>>Go to the next step.
DIAGNOSIS & TESTING
08
08–175Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2.CHECK BRAKE SWITCH POWER SUPPLY
• Stop vehicle.
• Check sensor power supply between sensor terminal 3 and ground in the sensor electrical connector C-005.
BRAKE SWITCH
CONDITION VALUE (VOLT)
Depress brake switch
Battery voltage
Release brake switch 0
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace the brake switch.
3.DETECT MALFUNCTIONING PART
• Check the following:
Harness connectors A-102, E-105
Harness for a short between TCM and brake switch
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace short to power in harness or connectors.
4.CHECK DTC
• With the X-431 scan tool, read TCM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC 26 still present?
Ye s>>Replace the TCM.
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
08–176Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 31 - Reverse/Low Solenoid Malfunction
DIAGNOSIS & TESTING
LTSMW080005T
08
08–177Chery Automobile Co., Ltd.