Downloaded from www.Manualslib.com manuals search engine 2.CHECK AIR FLOW SENSOR ELECTRICAL CONNECTOR
• Turn ignition switch off.
• Disconnect the air flow sensor 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.
3.CHECK AIR FLOW SENSOR POWER SUPPLY CIRCUIT
• Turn ignition switch on.
• Check supply voltage between air flow sensor ter-
minal 4 and ground in the air flow sensor electrical
connector E-058.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to step 5.
No
>>Go to the next step.
4.DETECT MALFUNCTIONING PART
• Check the following:
Harness connectors A-102, E-105
Front fuse and relay box H3
Fuse 22, Fuse 12
Harness open or short between air flow sensor and fuse
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning parts.
5.CHECK MAF SENSOR REFERENCE VOLTAGE
• Check reference voltage between air flow sensor terminal 7 and ground in the air flow sensor electrical connec-
tor E-058.
• 4.8 - 5.2 V should exist.
Is the check result normal?
Ye s>>Go to step 7.
No
>>Go to the next step.
DIAGNOSIS & TESTING
LTSMD030004
03–478Chery Automobile Co., Ltd.
Downloaded from www.Manualslib.com manuals search engine 2.CHECK CRANKSHAFT POSITION (CKP) SENSOR ELECTRICAL CONNECTOR
• Disconnect the CKP 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 CRANKSHAFT POSITION (CKP) SENSOR POWER SUPPLY CIRCUIT FOR AN OPEN OR SHORT
• Turn ignition switch on.
• Check supply voltage between CKP sensor terminal
3 and ground in the CKP sensor electrical connec-
tor E-055.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to step 5.
No
>>Go to the next step.
4.DETECT MALFUNCTIONING PART
• Check the following:
Fuse 22, Fuse 12
Front fuse and relay box H3
Harness connectors A-102, E-105
Harness open or short between CKP sensor and fuse
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning parts.
DIAGNOSIS & TESTING
LTSMD030079
LTSMD030012
03–500Chery Automobile Co., Ltd.