fuse CHERY TIGGO 2009 Service User Guide

Downloaded from www.Manualslib.com manuals search engine 6.CHECK INJECTOR POWER SUPPLY CIRCUIT FOR OPEN
• 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:
Front fuse and relay box F3, A13, G5
Fuse 12, fuse 24, fuse 27
Without EOBD (1.6L)
Front fuse and relay box F3, G2, G5
Fuse 12, fuse 23, fuse 24
harness 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 or replace malfunctioning parts.
8.CHECK INJECTOR CONTROL CIRCUITS FOR AN OPEN
• 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.
DIAGNOSIS & TESTING
LTSMD030024
03–146Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 6.CHECK INJECTOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND
• 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:
Front fuse and relay box F3, A13, G5
Fuse 12, fuse 24, fuse 27
Without EOBD (1.6L). Front fuse and relay box F3, G2, G5
Fuse 12, Fuse 23, Fuse 24
harness 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 parts.
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.
DIAGNOSIS & TESTING
LTSMD030024
03
03–161Chery Automobile Co., Ltd.

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:
Front fuse and relay box F3, A13, G5
Fuse 12, fuse 24, fuse 27
Without EOBD (1.6L) Front fuse and relay box F3, G2, G5
Fuse 12, Fuse 23, Fuse 24
• Check harness for open or shorted 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 or replace malfunctioning parts.
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.
DIAGNOSIS & TESTING
LTSMD030024
03–168Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2.CHECK CAMSHAFT POSITION (CMP) SENSOR ELECTRICAL CONNECTOR
• Disconnect the CMP 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.
3.CHECK THE CAMSHAFT POSITION SENSOR POWER SUPPLY CIRCUIT FOR AN OPEN AND 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 harness for an open or short between EVAP canister control valve and fuse.
• Check the following:
Without EOBD (1.6L) Front fuse and relay box F3, A1, G2, G5
Fuse 23, fuse 24, fuse 12
Without EOBD Front fuse and relay box F3, A1, A13, G2, G5
Fuse 23, fuse 24, fuse 12, fuse 27
WITH EOBD Front fuse and relay box F3, A1, A13, G5, H2, H3
Fuse 22, fuse 24, fuse 12, fuse 27
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the malfunctioning parts.
DIAGNOSIS & TESTING
VISMD030001
LTSMD030044
03
03–183Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3.CHECK EVAP CANISTER CONTROL VALVE ELECTRICAL CONNECTOR
• Disconnect the EVAP canister control valve (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.
4.CHECK EVAP CANISTER CONTROL VALVE POWER SUPPLY CIRCUIT
• Turn ignition switch on.
• Check supply voltage between EVAP canister con-
trol valve terminal 1 and ground.
• 12 V should exist.
Is the check result normal?
Ye s>>Go to step 6.
No
>>Go to the next step.
5.DETECT MALFUNCTIONING PART
• Check harness for an open or short between EVAP canister control valve and fuse.
• Check the following:
Without EOBD (1.6L) Front fuse and relay box F3, A1, G2, G5
Fuse 23, fuse 24, fuse 12
Without EOBD Front fuse and relay box F3, A1, A13, G2, G5
Fuse 23, fuse 24, fuse 12, fuse 27
With EOBD Front fuse and relay box F3, A1, A13, G5, H2, H3
Fuse 22, fuse 24, fuse 12, fuse 27
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning part.
DIAGNOSIS & TESTING
VISMD030007
LTSMD030046
03
03–189Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Check reference values between ECM terminals and ground under the following conditions:
ECM TERMINAL NO.ITEMCONDITIONDATA (AVERAGE DC
VOLTAGE)
69 Air compressor relay •
After engine has been
started for 5 seconds, A/C
can be turned on.
• If IAT is above 140.3°C ,
A/C will be shut off.
• If ECT is above
140.3°C, A/C will be shut
off. If ECT is below
111.8°C, A/C will resume.
• If A/C high side
pressure is above 20.0
bar, A/C will be shut off. If
A/C high side pressure is
below 19.5 bar, A/C will
resume.
• If evaporator
temperature is below
1.5°C, A/C will be shut off.
If evaporator temperature
is above 4.5°C, A/C will
resume.
• If system voltage is
below 8.04 V, A/C will be
shut off. If system voltage
is above 10.01 V, A/C will
resume. 0Vor12V
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
P0645 A/C clutch relay
circuit Engine is running ECM detected that
the input signal is
out of the
acceptable range. •
Fuse
• A/C compressor
relay
• Harness or
connectors
• ECM
DTC Confirmation Procedure:
Before performing the following procedure, confirm that battery voltage is more than 12 V.
• Turn ignition switch off.
• Connect the X-431 scan tool to the Data Link Connector (DLC) - use the most current software available.
• Turn ignition switch on.
• With the scan tool, record and erase stored DTCs in the ECM.
• Start engine and warm it up to the normal operating temperature.
• Turn A/C switch on then select view DTC.
• If DTC is detected, go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnosis & Testing Diagnostic Help in Sec-
tion 03 Electronic Engine Controls).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
DIAGNOSIS & TESTING
03
03–199Chery 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 1.6L/1.8L Engine) in Section 16 Wiring).
Are the ground connections OK?
Ye s>>Go to the next step.
No
>>Repair or replace ground connections.
2.CHECK A/C CLUTCH RELAY CONTROL CIRCUIT
• Turn off A/C switch.
• Check A/C clutch relay control circuit supply voltage
between ECM terminal 69 and ground in the ECM
electrical connector E-001.
• Battery voltage 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 FB18, SB2
Front fuse and relay box K, E, J
A/C compressor relay, EMS relay (R2)
Check harness for an open or short 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
03–200Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3.DETECT MALFUNCTIONING PART
• Check the following:
Harness connectors C-103, E-103, terminal 14
Front fuse and relay box connector A
Fuse 17
• Check harness for open or short between ECM and fuse.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning part.
4.CHECK GROUND CONNECTIONS
• Turn ignition switch off.
• Loosen and retighten one ground screw on the body.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace ground connections.
5.CHECK ECM GROUND CIRCUIT FOR AN OPEN OR SHORT
• Disconnect ECM harness connector.
• Check harness continuity between ECM terminals 3, 51, 53, 61, 80 and ground.
• Continuity should exist.
• Check harness for short to power.
Is the check result normal?
Ye s>>Go to step 7.
No
>>Go to the next step.
6.DETECT MALFUNCTIONING PART
• Check harness for open or short between ECM terminals 3, 51, 53, 61, 80 and ground.
• Check harness for an open or short to power in harness or connectors.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the circuit for an open or short to power in harness or connectors.
DIAGNOSIS & TESTING
03–258Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7.CHECK ECM POWER SUPPLY CIRCUIT - (2)
• Turn ignition switch on and then off.
• Check voltage between ECM terminals 44, 45, 63
and ground.
• Voltage: Turn the ignition

switch on and battery
voltage should exist. Turning the ignition switch


OFF, battery voltage will exist for 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.
8.CHECK THE STARTER RELAY CONTROL CIRCUIT
• Turn ignition switch OFF. Wait for at least 10 sec-
onds.
• Check voltage between ECM terminal 14 and


ground.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Go to step 10.
9.CHECK ECM POWER SUPPLY CIRCUIT - (3)
• Disconnect ECM harness connector.
• Disconnect front fuse and relay box harness connector F.
• Check harness continuity between ECM terminals 44, 45, 63 and front fuse and relay box terminal F3.
• Continuity should exist.
• 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 to power or short to ground in harness or connectors.
DIAGNOSIS & TESTING
LTSMD030062
LTSMD030063
03
03–259Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 10.CHECK STARTER RELAY CONTROL CIRCUIT
• Disconnect ECM harness connector.
• Disconnect front fuse and relay box harness connector A.
• Check harness continuity between ECM terminal 14 and front fuse and relay box terminal A1.
• Check harness continuity between front fuse and relay box terminal G2 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.
11 .CHECK FUSE
• Disconnect fuse 23 (10A), fuse 24 (5A) in front fuse and relay box.
• Check fuses.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace fuse 23 or 24.
12.CHECK FRONT FUSE AND RELAY BOX
• Check the front fuse and relay box for damage.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace front fuse and relay box.
13.REPLACE AND PROGRAM ECM
• Replace the ECM.
NOTE :
The Immobilizer control module must be matched to the new ECM (See ECM Removal & Installation in Section 03
Electronic Engine Controls).
DIAGNOSIS & TESTING
03–260Chery Automobile Co., Ltd.