2009 CHERY TIGGO fuse box

Downloaded from www.Manualslib.com manuals search engine 6.CHECK INJECTOR POWER SUPPLY CIRCUIT FOR SHORTED
• Turn ignition switch on.
• Check injector supply voltage between sensor ter-
minal and ground in the electrical connector.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to step 8.
No
>>Go to the next step.
7.DETECT MALFUNCTIONING PART
• Check the following:
Harness connectors A-102, E-105
Front fuse and relay box F3
Fuse 12, fuse 23, fuse 24
Harness for an open or short between injector and fuse
Is the check result normal?
Ye s>>With the X-431, check the system, If OK, go to the next step.
No
>>Repair malfunctioning part.
8.CHECK INJECTOR CONTROL CIRCUITS FOR A SHORT
• Check injector control circuit voltage.
• 3.6 V should exist.
Is the check result normal?
Ye s>>Go to step 10.
No
>>Go to the next step.
9.DETECT MALFUNCTIONING PART
• Turn ignition switch off.
• Disconnect ECM harness connector.
• Check if the injector control circuits short to power supply circuits.
• Check the following.
• Voltage should not exist.
INJECTOR NO. POWER SUPPLY CIRCUIT INJECTOR TERMINAL
1
Power supply circuit 2
2 2
3 2
4 2
DIAGNOSIS & TESTING
LTSMD030024
03–370Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2.CHECK THE 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 THE 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.
• 12 V 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 F3
Fuse 12, fuse 23, fuse 24
Harness for an open or short between CMP sensor and fuse
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning part.
DIAGNOSIS & TESTING
VISMD030001
LTSMD030044
03
03–385Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 5.DETECT MALFUNCTIONING PART
• Check the following:
Harness connectors A-102, E-105
Front fuse and relay box
Fuse 23, fuse 24, fuse 12
Harness between EVAP canister control valve and fuse
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning part.
6.CHECK EVAP CANISTER CONTROL VALVE CONTROL CIRCUIT FOR AN OPEN
• Check voltage between EVAP canister control valve terminal 2 and ground.
• Approximately 3.6 V should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace circuit for an open in harness or connectors.
If harness is normal, go to the next step.
7.CHECK EVAP CANISTER CONTROL VALVE
• Turn ignition switch off.
• Remove EVAP canister control valve.
• Check resistance between EVAP canister terminal 1 and 2 as shown in table.
EVAP CANISTER
CONTROL VALVE TERMINAL NO. RESISTANCE
(20°C)
1 - 2 Approximately 26
• Check air passage continuity and operation when apply 12 V current supply voltage between terminal 1 and 2.
• The check results should match specification.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace EVAP canister control valve.
DIAGNOSIS & TESTING
03–392Chery Automobile Co., Ltd.

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 AIR CONDITION CLUTCH RELAY CONTROL CIRCUIT POWER SUPPLY CIRCUIT FOR OPEN
• Turn ignition switch on.
• Turn A/C switch off.
• Check A/C clutch relay control circuit supply voltage
between ECM terminal 69 and ground in the ECM
electrical connector E-001.
• 12 V should exist.
Is the check result normal?
Ye s>>Go to step 4.
No
>>Go to the next step.
3.DETECT MALFUNCTIONING PART
• Check the following:
Fuse 12
A/C relay
Body fuse and relay box G5
Harness connectors C-103, E-103, B-104, C-104
Harness for open between ECM terminal 69 and fuse 12
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning part.
DIAGNOSIS & TESTING
LTSMD030065
03
03–403Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3.DETECT MALFUNCTIONING PART
• Check the following:
Fuse 17
Harness connectors C-103, E-103, terminal 1
Front fuse and relay box connector A
Harness open or short between ECM and fuse
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning parts.
4.CHECK ECM POWER SUPPLY CIRCUIT - (2)
• Check voltage between ECM terminal 64 and ground.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Check the following:
Harness connectors A-102, E-105, terminal 4
Front fuse and relay box connector A
Harness open or short between ECM and battery
5.CHECK GROUND CONNECTIONS
• Turn ignition switch off.
• Loosen and retighten ground screws on the body.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace ground connections.
6.CHECK ECM GROUND CIRCUIT FOR AN OPEN OR SHORT
• Disconnect ECM harness connector.
• Check harness continuity between ECM terminals 13, 26 and ground.
• Continuity should exist.
• Also check harness for short to power.
Is the check result normal?
Ye s>>Go to step 8.
No
>>Go to the next step.
7.DETECT MALFUNCTIONING PART
• Check harness for open or short between ECM terminals 13, 26 and ground.
• Repair open circuit or short to power in harness or connectors.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair circuit for an open or short to power in harness or connectors.
DIAGNOSIS & TESTING
03–466Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 8.CHECK ECM POWER SUPPLY CIRCUIT - (3)
• Turn ignition switch on and then off.
• Check voltage between ECM terminals

12, 25 and ground.
• Voltage: Turn ignition switch on battery voltage will be exist and after turning ignition switch off, battery voltage
will exist a few seconds, then

drop to approximately 0 V.
Is the check result normal?
Ye s>>Check the starting system.
No
>>Go to the next step.
9.CHECK STARTER RELAY SUPPLY VOLTAGE
• Turn ignition switch off. Wait for at least 10 seconds.
• Check voltage between ECM terminal 34 and ground.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Go to step 11.
10.CHECK ECM POWER SUPPLY CIRCUIT - (4)
• Disconnect ECM harness connector.
• Disconnect front fuse and relay box harness connector F.
• Check harness continuity between ECM terminals 12, 25 and front fuse and relay box terminal F3.
• Continuity should exist.
• Also check harness for short to ground and short to power.
Is the check result normal?
Ye s>>Go to step 12.
No
>>Repair circuit for an open or short in harness or connectors.
11 .CHECK STARTER RELAY CIRCUIT
• Disconnect ECM harness connector.
• Disconnect front fuse and relay box harness connector A, G.
• Check harness continuity between ECM terminal 34 and front fuse and relay box terminal A1.
• Check harness continuity between front fuse and relay box terminal A1 and G5,
• Check harness continuity between front fuse and relay box terminal A13 and G5,
• Continuity should exist.
• Also check harness for short to ground and short to power.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair circuit for an open or short to ground or short to power in harness or connectors.
DIAGNOSIS & TESTING
03
03–467Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 12.CHECK FUSE
• Disconnect fuse 12 (30A), fuse 24 (5A), fuse 25 (10A), front fuse and relay box.
• Check fuse.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace fuse 12, 23, 24.
13.CHECK FRONT FUSE AND RELAY BOX
• Check front fuse and relay box.
• Check harness continuity between front fuse and relay box and battery.
Is the check result normal?
Ye s>>Replace the ECM.
No
>>Replace or repair front fuse and relay box or harness.
DIAGNOSIS & TESTING
03–468Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7.DETECT MALFUNCTIONING PART
• Check the following:
Fuse 25, Fuse 12, Fuse 24
Front fuse and relay box H5
Harness connectors A-102, E-105
Harness open or short between O
2sensor and fuse
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning parts.
8.CHECK O2SENSOR HEATER CONTROL CIRCUIT FOR AN OPEN AND SHORT
• Turn ignition switch off.
• Check harness continuity between ECM terminal and O
2sensor terminal.
COMPONENTS ECMO2SENSOR
TERMINAL 523
• Continuity should exist.
• Check harness short to power supply circuit and ground.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair the circuit for an open or short to power supply circuit or ground in harness or connectors.
9.CHECK O2SENSOR HEATER
• Check resistance between O
2sensor terminals.
TERMINAL NO. RESISTANCE
2 & 3 (including cable and
connector) Approximately 9

1&2and1&3 (Continuity should notexist)
4&2and4&3
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace O2sensor.
DIAGNOSIS & TESTING
03–474Chery Automobile Co., Ltd.