service reset CHERY TIGGO 2009 Service Repair Manual

Downloaded from www.Manualslib.com manuals search engine DIAGNOSIS & TESTING
Diagnostic Help
1. Confirm that the malfunction is current and carry-out the diagnostic tests and repair procedures.
2. If the Diagnostic Trouble Code (DTC) cannot be deleted, it is a current fault.
3. Use a digital multimeter to perform voltage readings on the Electronic Fuel Injection (EFI) system.
4. The scan tool connects to the Data Link Connector (DLC) and communicates with the ECM.
5. If the failure is intermittent perform the following:•Check for loose connectors.
• Look for any chafed, pierced, pinched, or partially broken wires.
• Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors.
• Look for the data to change or for the DTC to reset during the wiggle test.
• Look for broken, bent, pushed out or corroded terminals.
• Inspect the sensor and mounting area for any condition that would result in an incorrect signal, such as
damage or foreign material.
6. Remove the ECM from the troubled vehicle and install in a new vehicle and test. If the DTC can not be deleted, the ECM is malfunctioning. If the DTC can be deleted, return the ECM to the original vehicle.
Diagnostic Logic
If the DTC can not be deleted, it is a current failure.
If the DTC can be deleted, it is an intermittent incident. In many cases, the malfunction resolves itself (the part or
circuit function returns to normal without intervention). It is important to realize that the symptoms described in the
customer’s complaint often do not recur on (1st trip) DTC visits. Realize also that the most frequent causes of inter-
mittent incidents occurrences is poor electrical connections. Because of this, the conditions under which the incident
occurred may not be clear. Therefore, circuit checks made as part of the standard diagnostic procedure may not
indicate the specific malfunctioning area.
Check if it is because of the loosening of cable joint.
Look for any chafed, pierced, pinched, or partially broken wires.
Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors.
Look for the data to change or for the DTC to reset during the wiggle test.
Look for broken, bent, pushed out or corroded terminals.
Inspect the sensor and mounting area for any condition that would result in an incorrect signal, such as damage,
foreign material.
Refer to any Technical Service Bulletins that may apply.
DIAGNOSTIC REFERENCE
•Check ground terminals for corroding or loose connection. Refer to Ground Inspection.
• Search for electrical incident. Refer to Diagnosis for an Electrical Incident.
• Check connector terminals. Refer to How to Check Terminal.
DURING ENGINE CHECKS AND REPAIRS USE CAUTION NOT TO HARM THE ENGINE MECHANICAL SYSTEM
• Check cylinder pressure.
• Check ignition timing.
• Check fuel system pressure.
• Check the EVAP system.
• Check for vacuum leaks.
• Check output of the TPS.
• Check the injectors for leaks.
Remove and install the doubtful ECM to a new vehicle and test it. If the DTC can not be deleted, the malfunction is
inside of ECM; if the DTC can be deleted, change the original ECM back and check it again according to above
items.
Inspect and clean all ECM, engine, and body grounds that are related to the DTC. If numerous trouble codes were
set, use a wire schematic and look for any common ground or supply circuits for any camshaft pulley DTCs inspect
for dirt/metal debris.
03–458Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 15. Remove the bolts (1) between the steering gearand the sub-frame.
(Tighten: Steering gear and sub-frame bolt to 70 -
80 N·m)
16. Support the engine using a suitable tool.
17. Remove the engine front and rear mounts (See Engine Mounts Removal & Installation in Section 02 Engine).
18. Remove the sub-frame mounting bolts (1) (4 total) between the sub-frame assembly and the vehicle
body.
(Tighten: Sub-frame mounting bolts to 180 ± 15 N·m)
180 ± 15 N·m)
NOTE :
Before removing the front suspension sub-frame from the vehicle, the location of the sub-frame must be marked on
the body of the vehicle. Do this so the sub-frame can be relocated, upon reinstallation, against the body of vehicle in
the same location as before removal. If the front suspension sub-frame is not reinstalled in exactly the same location
as before removal, the preset front wheel alignment settings (caster and camber) may be lost.
19. Using a jack, slowly lower the sub-frame enough to access the intermediate shaft coupling at the steering gear pinion shaft.
20. Remove the steering gear assembly.
21. Installation is in the reverse order of removal.
Installation Notes:
• After installing the new steering gear, perform a front end alignment procedure to reset the toe-in (See Front
Wheel Alignment in Section 10 Suspension).
ON-VEHICLE SERVICE
LTSM100024
LTSM100044
11 –24Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 15. Remove the bolts (1) between the steering gearand the sub-frame.
(Tighten: Steering gear and sub-frame bolt to 70 -
80 N·m)
16. Support the engine using a suitable tool.
17. Remove the engine front and rear mounts (See Engine Mounts Removal & Installation in Section 02 Engine).
18. Remove the sub-frame mounting bolts (1) (4 total) between the sub-frame assembly and the vehicle
body.
(Tighten: Sub-frame mounting bolts to 180 ± 15
N·m)
NOTE :
Before removing the front suspension sub-frame from the vehicle, the location of the sub-frame must be marked on
the body of the vehicle. Do this so the sub-frame can be relocated, upon reinstallation, against the body of vehicle in
the same location as before removal. If the front suspension sub-frame is not reinstalled in exactly the same location
as before removal, the preset front wheel alignment settings (caster and camber) may be lost.
19. Using a jack, slowly lower the sub-frame enough to access the intermediate shaft coupling at the steering gear pinion shaft.
20. Remove the steering gear assembly.
21. Installation is in the reverse order of removal.
Installation Notes:
• After installing the new steering gear, perform a front end alignment procedure to reset the toe-in (See Front
Wheel Alignment in Section 10 Suspension).
ON-VEHICLE SERVICE
LTSM100024
LTSM100044
11 –28Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Tie Rod
Removal & Installation
NOTE :
The following special tool is required to perform the repair procedure:
•CH-10002 - Ball Joint Separator
1. Raise and support the vehicle.
2. Remove the wheel mounting nuts and the wheel assembly. (Tighten: Wheel mounting nuts to 110 N·m)
3. Loosen the tie rod jam nut (1). (Tighten: Tie rod jam nut to 15 N·m)
4. Remove the nut (1) attaching the outer tie rod end to the steering knuckle.
(Tighten: Outer tie rod end nut to 32 - 38 N·m)
5. Using special tool CH-10002, separate the outer tie rod end from the steering knuckle.
6. Remove the outer tie rod end from the steering rack.
NOTE :
When removing the outer tie rod end, count the number of revolutions when removing. This will aid in installation,
getting the toe setting close to where it needs to be when setting the final toe-in wheel alignment. 7. Installation is in the reverse order of removal.
Installation Notes:
• After installing the new tie rod end, perform a front end alignment procedure to reset the toe-in (See Front
Wheel Alignment in Section 10 Suspension).
ON-VEHICLE SERVICE
VISM100021
LTSM110034
11
11 –29Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DIAGNOSIS & TESTING
Clearing Service Monitor Lamp
Perform the following to clear the service monitor lamp:1. Turn the ignition switch off.
2. Press down and hold the Mode switch.
3. Turn the ignition switch on.
4. Release the Mode switch.
5. Press the Mode switch and the Clock switch simultaneously within 30 seconds and hold less than 2 seconds to clear the mileage maintenance identification.
Diagnostic Help
1. The X-431 scan tool connects to the Data Link Connector (DLC) and communicates with the vehicle electronicmodules through the class two serial data circuit.
2. Confirm that the malfunction is current and carry-out the diagnostic tests and repair procedures.
3. If the DTC cannot be deleted, it is a current fault.
4. Use a digital multimeter to perform voltage readings on electronic systems.
5. Refer to any Technical Bulletins that issued.
6. Visually inspect the related electrical wiring harness.
7. Inspect and clean all Instrument Cluster (IC) grounds that are related to the DTC.
8. If numerous trouble codes were set, use the electrical schematic and look for any common ground circuits or voltage supply circuits that may apply to the DTC.
Intermittent DTC Troubleshooting
If the failure is intermittent, perform the following:
•Check for loose connectors.
• Look for any chafed, pierced, pinched, or partially broken wires.
• Monitor the scan tool data relative to this circuit.
• Wiggle the related electrical wiring harness and connectors while looking for an interrupted signal on the
affected circuit.
• If possible, try to duplicate the conditions under which the DTC set.
• Look for the data to change or for the DTC to reset during the wiggle test.
• Look for broken, bent, pushed out or corroded terminals.
• Inspect the sensor and mounting area for any condition that would result in an incorrect signal, such as dam-
age or foreign material.
• A data recorder, and/or oscilloscope should be used to help diagnose intermittent conditions.
Ground Inspection
Ground connections are very important to the proper operation of electrical and electronic circuits. Ground connec-
tions are often exposed to moisture, dirt and other corrosive elements. The corrosion (rust) can become an unwanted
resistance. This added resistance can alter the way a circuit works.
Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can drastically
affect an electronically controlled circuit. A poor or corroded ground can effect the circuit. Perform the following when
inspecting a ground connection:
1. Remove the ground bolt or screw.
2. Inspect all mating surface for tarnish, dirt, rust, etc.
3. Clean as required to assure good contact.
4. Reinstall bolt or screw securely.
5. Inspect for add-onaccessories which may be interfering with the ground circuit.
6. If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the wires are clean, securely fastened and providing a good ground path. If multiple wires are crimped to one eyelet, make
sure no excess wire insulation has been crimped creating a bad ground.
15–64Chery Automobile Co., Ltd.