2009 CHERY TIGGO engine

Downloaded from www.Manualslib.com manuals search engine CheckreferencevaluesbetweenECMterminalsandgroundunderthefollowingconditions:
ECMTERMINALNO.ITEMCONDITIONDATA(DCVOLTAGE)
12ContinuousSupply
Voltage- Voltage(11-14V)
13IgnitionSwitch€Ignitionswitch:ON Voltage(11-14V)
€Ignitionswitch:OFF Approximately0V
14EMSRelay(MainRelay)
€Ignitionswitch:OFF
€Morethanafew
secondsafterturning
ignitionswitchOFF
Voltage(11-14V)
44
45SwitchedSupplyVoltage
(SSV)€Ignitionswitch:ON Voltage (11 - 14 V)
63
DIAGNOSIS&TESTING
03
03–29CheryAutomobileCo.,Ltd.

Downloaded from www.Manualslib.com manuals search engine DIAGNOSIS & TESTING
LTSMW030043T
03–30Chery 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 (DC VOLTAGE)
3 GND (IGN) Ignition switch: ON Approximately 0 V
51 GND (Signal) Ignition switch: ON Approximately 0 V
53 GND (Signal) Ignition switch: ON Approximately 0 V
61 GND (Power) Ignition switch: ON Approximately 0 V
80 GND (Power) Ignition switch: ON Approximately 0 V
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.
• Start the engine and warm it to normal operating temperature.
• With the scan tool, select view data stream.
• If the data stream is not detected, the condition is current. Go to Diagnostic Procedure - Step 1.
• If the data stream is detected, the condition is intermittent (See Diagnostic Help and Intermittent DTC Trouble-
shooting in Section 03 Electronic Engine Controls for more information).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.PRELIMINARY INSPECTION
• Attempt to start the engine.
Does the engine start?
Ye s>>Go to step 7.
No
>>Go to step 2.
2.CHECK ECM POWER SUPPLY CIRCUIT - (1)
• Turn ignition switch off and then on.
• Check voltage between the ECM terminal 13 and
ground.
• Battery voltage should exist.
Is the check result normal?
Ye s>>Go to step 4.
No
>>Go to step 3.
DIAGNOSIS & TESTING
LTSMD030061
03
03–31Chery 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 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 Diagnostic Trouble Code (DTC) Tests
P0016 - Camshaft Position-Crankshaft Position Correlation Error
DIAGNOSIS & TESTING
LTSMW030051T
03
03–35Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DIAGNOSIS & TESTING
LTSMW030046T
03–36Chery Automobile Co., Ltd.