relay CHERY TIGGO 2009 Service User Guide

Downloaded from www.Manualslib.com manuals search engine 3.DETECT MALFUNCTIONING PART
• Check the following:
Fuse 17
Harness connectors C-103, E-103, terminal 14
Front fuse and relay box connector A
Harness for an open or short between ECM and fuse
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace circuit for an open or short in harness or connectors.
4.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.
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.
• Also 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.
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.
DIAGNOSIS & TESTING
03–32Chery Automobile Co., Ltd.

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

on, battery voltage
should exist and after turning ignition switch of
f,
battery voltage will exist a few seconds, then drop
to approximate 0 V.
Is the check result normal?
Ye s>>Check the starting system.
No
>>Go to the next step.
8.CHECK STARTER RELAY (K4) SUPPLY VOLTAGE
• Turn ignition switch off. Wait for at least 10 sec-
onds.
• Check voltage between the 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 ECM power supply circuit connector F in front fuse and relay box harness connector.
• Check harness continuity between ECM terminals 44, 45, 63 and front fuse and relay box terminal F3.
• Continuity should exist.
• Also check harness for a short to ground and short to power.
Is the check result normal?
Ye s>>Go to step 11.
No
>>Repair circuit for an open or short to power in harness or connectors.
DIAGNOSIS & TESTING
LTSMD030062
LTSMD030063
03
03–33Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 10.CHECK STARTER RELAY (K4) 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 A13.
• If not equipped with EOBD (1.6L): Check harness continuity between front fuse and relay box terminal G2 and
G5.
• Continuity should exist.
• Also check harness for a 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 27 (10A), fuse 24 (5A) in the front fuse and relay box.
• If Without EOBD (1.6L): Disconnect fuse 23 (10A), fuse 24 (5A) front fuse and relay box.
• Check fuses.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace fuse 23, fuse 24 or fuse 27.
12.CHECK FRONT FUSE AND RELAY BOX
• Check front fuse and relay box.
Is the check result normal?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>Replace front fuse and relay box.
DIAGNOSIS & TESTING
03–34Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.DETECT MALFUNCTIONING PART
• Check the following:
1.6L Without EOBD Front fuse and relay box G2, G5, A1, F3
Fuse 23, fuse 12, fuse 24
Without EOBD Front fuse and relay box A1, F3, G5, A13
Fuse 27, fuse 12, fuse 24
With EOBD Front fuse and relay box H3, H2, ,G5, A1, F3, A13
Fuse 27, fuse 12, fuse 24, fuse 22
• Harness for an open or short between CMP sensor and fuse
• Check the relay or replace the relay if necessary.
• Repair circuit in harness or connectors.
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0016 still present?
Ye s>>Go to the next step.
No
>>The system is operating properly at this time.
5.CHECK THE CMP SENSOR GROUND CIRCUIT FOR AN OPEN OR SHORT
• Turn ignition switch off.
• Check continuity between CMP sensor terminal 1 and ground.
• Continuity should exist.
• Also check harness for short to power.
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 THE CMP SENSOR INPUT SIGNAL CIRCUIT FOR AN OPEN OR 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
03–39Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.DETECT MALFUNCTIONING PART
• Check the following:
With EOBD (1.6L and 1.8L) Fuse 25, fuse 12, fuse 27, fuse 24
Front fuse and relay box H2, H5, F3, A1, A13, G5
Harness between O
2sensor and fuse
Without EOBD (1.6L) Fuse 23, fuse 12, fuse 27, fuse 22, fuse 25
Front fuse and relay box H2, H5, H3, F3, A1, G2, G5
Harness between O
2sensor and fuse
Without EOBD (1.8L) Fuse 22, fuse 25, fuse 12, fuse 27, fuse 24
Front fuse and relay box H2, H3, H5, F3, A1, A13, G5
Harness between O
2sensor and fuse
• Repair or replace if necessary.
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0031 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 O2SENSOR HEATER CONTROL CIRCUIT FOR OPEN OR SHORT
• Turn ignition switch off.
• Disconnect ECM connector.
• Check harness continuity between ECM terminal and O
2sensor terminal.
• Continuity should exist.
• Check sensor heater control circuit.
O2SENSOR TERMINAL
ECM Oxygen sensor
Upstream O
2sensor heater •
48 (With EOBD)
• 1 (Without EOBD) 1
• cCheck harness short to ground.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the circuit for an open or short in harness or connectors.
DIAGNOSIS & TESTING
03
03–49Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.DETECT MALFUNCTIONING PART
• Check the following:
With EOBD (1.6L and 1.8L) Front fuse and relay box H2, H5, F3, A1, A13, G5
Fuse 25, fuse 12, fuse 27, fuse 24
Without EOBD (1.6L) Front fuse and relay box H2, H5, H3, F3, A1, G2, G5
Fuse 23, fuse 12, fuse 27, fuse 22, fuse 25
Without EOBD (1.8L) Front fuse and relay box H2, H3, H5, F3, A1, A13, G5
Fuse 22, fuse 25, fuse 12, fuse 27, fuse 24
• Check the harness for an open or a short between the O
2sensor and fuse.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning parts as necessary.
5.CHECK THE O2SENSOR HEATER CONTROL CIRCUIT FOR SHORT
• Turn ignition switch off.
• Disconnect ECM connector.
• Check harness continuity between ECM terminal and O
2sensor terminal.
• Continuity should exist.
• Check the control circuit of the sensor heater.
O2SENSOR ECM TERMINAL O2SENSOR TERMINAL
Upstream O
2sensor heater (With
EOBD) 48
1
Upstream O
2sensor heater (Without EOBD) 11
• Check harness short to power supply circuit.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace circuit for a short to power in harness or connectors.
DIAGNOSIS & TESTING
03
03–55Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 5.DETECT MALFUNCTIONING PART
• Check the following:
With EOBD Fuse 21, fuse 22, fuse 24, fuse 27
Front fuse and relay box H2, H3, F3, A1, A13, G5
Harness between air flow sensor and fuse
Without EOBD Fuse 21, fuse 24, fuse 27
Front fuse and relay box F3, A1, A13, G5
Harness between air flow sensor and fuse
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace malfunctioning parts as necessary.
6.CHECK THE MAF SENSOR REFERENCE CIRCUIT
• Check voltage between MAF sensor terminal 4 and
ground in the MAF sensor electrical connector
E-009.
• 5 V should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace the circuit for an open
or short to ground in harness or connec-
tors.
If circuit is normal, go to the next step.
7.CHECK THE MAF SENSOR GROUND CIRCUIT FOR AN OPEN OR SHORT
• Turn ignition switch off.
• Disconnect ECM harness connector.
• Check harness continuity between MAF sensor terminal 3 and ECM terminal 17.
• Continuity should exist.
• Check harness for short to ground.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace circuit for an open in harness or connectors.
DIAGNOSIS & TESTING
LTSMD030042
03–60Chery Automobile Co., Ltd.

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.