2009 CHERY TIGGO sensor

Downloaded from www.Manualslib.com manuals search engine Diagnostic Procedure
1.CHECK GROUND CONNECTIONS
• Turn ignition switch off.
• Loosen and retighten ground screws on the body (See Ground Inspection in Section 03 Electronic Engine Con-
trols).
• Inspect ground connections E-207 and E-208 mounting position (See Vehicle Wiring Harness Layout - Engine
Room Harness (With 2.0L Engine) in Section 16 Wiring).
Are the ground connections OK?
Ye s>>Go to the next step.
No
>>Repair or replace ground harness or connections.
2.CHECK CMP SENSOR ELECTRICAL CONNECTOR
• Disconnect the CMP sensor electrical connector (1).
• Inspect the electrical connector for damage.
Is the electrical connector OK?
Ye s>>Go to the next step.
No
>>Repair or replace the electrical connector
as necessary.
3.CHECK CMP SENSOR POWER SUPPLY CIRCUIT FOR AN OPEN OR SHORT
• Turn ignition switch on.
• Check CMP sensor supply voltage between sensor
connector E-007, terminal 3 and ground in the sen-
sor electrical connector.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to step 5.
No
>>Go to the next step.
DIAGNOSIS & TESTING
VISMD030001
LTSMD030044
03–264Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.DETECT MALFUNCTIONING PART
• Check the following:
Harness connectors A-102, E-105
Front fuse and relay box F3
Fuse 22, Fuse 12
Check harness for open or short between CMP sensor and fuse.
• With the X-431 scan tool, read ECM DTCs.
Is DTC P0016 still present?
Ye s>>Go to the next step.
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
5.CHECK CMP SENSOR GROUND CIRCUIT FOR AN OPEN AND SHORT
• Turn ignition switch off.
• Check harness continuity between CMP sensor terminal 1 and ground.
• Continuity should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace circuit for an open or short to power in harness or connectors.
6.CHECK CMP SENSOR INPUT SIGNAL CIRCUIT FOR AN OPEN AND SHORT
• Turn ignition switch on.
• Check voltage between CMP sensor terminal 2 and ground.
• 11 V should exist.
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 in harness or connectors.
If circuit is normal, go to the next step.
DIAGNOSIS & TESTING
03
03–265Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7.CHECK CMP SENSOR SIGNAL
• Turn ignition switch off.
• Connect CMP sensor connector.
• Check signal voltage between CMP sensor terminal 2 and ground when engine is running.
• Approximately 6 V square wave signal should exist.
ENGINE ANALYZER (KES-200) CMP SENSOR SIGNAL
Is the CMP output signal normal?
Ye s>>Go to step 10.
No
>>Go to the next step.
8.CHECK CMP SENSOR
• Remove the CMP sensor (1).
• Inspect and clean the CMP sensor and mounting
area for any condition that would result in an incor-
rect signal, such as damage, foreign material, or
excessive movement.
Is the mounting area OK?
Ye s>>Go to the next step.
No
>>Repair or replace the sensor as
necessary.
DIAGNOSIS & TESTING
VISMD030001
03–266Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 9.CHECK CMP SENSOR RESISTANCE
• Check the resistance of the CMP sensor, component side.
TERMINAL NO. RESISTANCE (25°C)
1&2
Except 0 or
1&3
2&3
Is the check result normal?
Ye s>>Replace the CMP sensor with a known good CMP sensor.
Monitor the CMP sensor signal on the KES-200 screen.
If the CMP sensor signals were normal, the system is OK.
If the CMP sensor signals were still irregular or missing, go to step 14.
No
>>Eliminate any condition that would result in an incorrect signal.
DIAGNOSIS & TESTING
03
03–267Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 10.CHECK CKP SENSOR SIGNAL
• Check signal between CKP sensor (1) terminal 1 or
2 and ground when engine is running.
ENGINE ANALYZER (KES-200) CKP SENSOR SIGNAL
Is the CKP output signal normal?
Ye s>>Go to step 12.
No
>>Go to the next step.
DIAGNOSIS & TESTING
VISMD030200
03–268Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 11 .CHECK CKP SENSOR ELECTRICAL CONNECTOR
• Disconnect the CKP sensor (1) electrical connector.
• Inspect the electrical connector for damage.
Is the electrical connector OK?
Ye s>>Go to the next step.
No
>>Repair or replace the electrical connector
as necessary.
12.CHECK CKP SENSOR
• Remove the CKP sensor.
• Inspect and clean the CKP sensor and mounting area for any condition that would result in an incorrect signal,
such as damage, foreign material, or excessive movement.
Is the mounting area OK?
Ye s>>Go to the next step.
No
>>Repair or replace the sensor as necessary.
DIAGNOSIS & TESTING
VISMD030200
03
03–269Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 13.CHECK CKP SENSOR RESISTANCE
• Check the resistance of the CKP sensor, component side.
TERMINAL NO. RESISTANCE (25°C)
1 & 2 Approximately 860
Is the check result normal?
Ye s>>Replace the CKP sensor with a known good CKP sensor.
Monitor the CKP sensor signal on the KES-200 screen.
If the CKP sensor signals were normal, the system is OK.
If the CKP sensor signals were still irregular or missing, go to step 15.
No
>>Replace the CKP sensor.
14.CHECK CAMSHAFT AND CAMSHAFT SIGNAL PLATE
• Remove the cylinder head cover and timing belt cover (See timing belt removal and installation in Section 02
engine).
• Check the installed clearance (See CMP sensor Removal & Installation in Section 03 Electronic Engine Con-
trols).
• 0.8 - 1.2 mm should exist.
• Check the camshaft and camshaft signal plate for any condition that would result in an incorrect signal, such as
damage, become flexible, foreign material when rotate the camshaft.
Were any problems found?
Ye s>>Remove debris and clean the signal plate of camshaft rear end or replace camshaft.
Reinstall CMP sensor.
No
>>Go to step 17.
15.CHECK THE CRANKSHAFT AND CRANKSHAFT SIGNAL PLATE
• Check the installed clearance (See CKP sensor Removal & Installation in Section 08 Transaxle & Transfer
Case).
• 0.8 - 1.2 mm should exist.
• Check the crankshaft and camshaft signal plate for any condition that would result in an incorrect signal, such
as damage, become flexible, foreign material when rotate the camshaft.
Were any problems found?
Ye s>>Remove debris and clean the signal plate of crankshaft rear end or replace crankshaft.
Reinstall the CKP sensor.
No
>>Go to the next step.
DIAGNOSIS & TESTING
03–270Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine P0031 - O2Sensor 1 Heater Control Circuit Low
DIAGNOSIS & TESTING
LTSMW030036T
03–272Chery Automobile Co., Ltd.