relay CHERY TIGGO 2009 Service Owners Manual

Downloaded from www.Manualslib.com manuals search engine B3050 - Relay External Line Short Circuit To Ground Or Open Circuit, Relay External
Line Malfunction
B3053 - Relay External Line Short Circuit To Battery
DIAGNOSIS & TESTING
LTSMW150081T
15–126Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine On Board Diagnostic Logic
•Self-diagnosis detection logic.
DTC NO. DTC DEFINITION DTC DETECTION
CONDITION DTC SET
CONDITION POSSIBLE CAUSE
B3050 Relay external line
short circuit to
ground or open
circuit, relay external line malfunction Ignition switch: ON The Immobilizer
control module
detects a short to
ground condition on
the W-Line for at
least 3 seconds. •
Harness or
connectors
• Immobilizer control
module
B3053 Relay external line
short circuit to battery Ignition switch: ON The Immobilizer
control module
detects a short to
battery condition on
the relay external
line. •
Harness or
connectors
• Immobilizer control
module
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, view and erase stored DTCs in the Immobilizer control module.
• Try to start the engine.
• Turn ignition switch off, and wait a few seconds, then turn ignition switch on.
• With the scan tool, view active DTCs in the Immobilizer control module.
• If the DTC is detected, the condition is current. Go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help and Intermittent DTC Trou-
bleshooting in Section 15 Body & Accessories for more information).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
DIAGNOSIS & TESTING
15
15–127Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 4.CHECK IMMOBILIZER CONTROL MODULE POWER SUPPLY
• Turn ignition switch on.
• Check if voltage is present on the Immobilizer control module connector C-025, pin 4,1 and ground.
IMMOBILIZER CONTROL
MODULE TERMINAL GROUND
1
Ground
4
Is 12 V present?
Ye s>>Replace and program the Immobilizer control module. Refer to DTC B3077 Diagnostic Procedure.
No
>>For DTC B3050, go to the next step.
For DTC B3053, go to the step 6.
5.CHECK IMMOBILIZER CONTROL MODULE POWER SUPPLY CIRCUIT
• Turn ignition switch off.
• Disconnect the negative battery cable.
• Disconnect the body fuse and relay box electrical connector A.
• Check harness continuity between the following terminals:
• Continuity should exist.
BODY FUSE
AND RELAY BOX
TERMINAL IMMOBILIZER
CONTROLMODULE
TERMINAL CONTINUITY
A2
1Yes
DIAGNOSIS & TESTING
15
15–129Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine •Check for harness continuity between the following terminals:
• Continuity should exist.
BODY FUSE
AND RELAY BOX
TERMINAL IMMOBILIZER
CONTROLMODULE
TERMINAL CONTINUITY
A6
4Yes
• Check harness for a short to ground.
• Continuity between Immobilizer control module power supply and ground should not exist.
Is the check result normal?
Ye s>>Go to the step 7.
No
>>Repair or replace the open or high resistance circuit or short to ground in harness or connectors.
6.CHECK IMMOBILIZER CONTROL MODULE POWER SUPPLY CIRCUIT
• Turn ignition switch off.
• Disconnect the negative battery cable.
• Disconnect the body fuse and relay box electrical connector A.
• Check the resistance between Immobilizer control module ignition switch circuit terminal 4 and Immobilizer con-
trol module battery supply circuit terminal 1.
IMMOBILIZER
CONTROLMODULE
TERMINAL IMMOBILIZER
CONTROLMODULE
TERMINAL CONTINUITY
14N
o
• Check resistance between Immobilizer control module ignition switch circuit and other power circuits.
Is the check result normal?
Ye s>>Go to the step 8.
No
>>Repair or replace short to power circuits in harness or connectors.
DIAGNOSIS & TESTING
15–130Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7.DETECT MALFUNCTIONING PART
• Check the following:
Body fuse and relay box
Fuse F17 (10A), fuse F26 (10A)
Harness between battery and body fuse and relay box
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace damaged components.
8.REPLACE AND PROGRAM THE IMMOBILIZER CONTROL MODULE
• With the X-431 scan tool, view active DTCs in the Immobilizer control module.
• Refer to DTC Confirmation Procedure.
Is DTC B3050 or B3053 still present?
Ye s>>Replace and program Immobilizer control module.
No
>>The system is now operating properly.
Reassemble the vehicle and verify the customers complaint is repaired.
DIAGNOSIS & TESTING
15
15–131Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine WIRING
16
CONTENTSpage
Wiring Information ................................................................... 16-1
Vehicle Power Distribution ............................................................ 16-12
Vehicle Ground Distribution ........................................................... 16-27
Vehicle Fuse Box Information ......................................................... 16-37
Vehicle Wiring Harness Layout ........................................................ 16-44
WIRING INFORMATION
GENERAL INFORMATION16-2
Description 16-2
Electrical Schematics 16-2
International Symbols 16-3
ELECTRICAL TROUBLESHOOTING16-5
Troubleshooting Wiring Problems 16-5
Testing For Voltage 16-5
Testing For Continuity 16-5
Testing For A Short To Ground 16-5
Intermittent and Poor Connections 16-5
ELECTRICAL TROUBLESHOOTING TOOLS
16-6
Jumper Wires 16-6 Voltmeter 16-6
Ohmmeter 16-7
ELECTRICAL REPAIR16-8
Wire Repair 16-8
Fuse Replacement 16-8
ELECTRICAL COMPONENTS16-9
Battery Cable 16-9
Sensors, Switches, and Relays 16-9
Connectors 16-10
16
16–1Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Below is a list of the symbols and their definitions that are used in the electrical schematics.
NUMBERITEM DESCRIPTION
1 Power source This represents the condition when the system receives battery
positive voltage.
2 Fuse The single line represents that this is a fuse.
3 Current rating This represents the current rating of the fuse.
4 Fuse location This represents the location of the fuse in the Power Fuse Box or
Front Fuse and Relay Box.
5 Connectors This represents connector E-101 is female and connector C-101 is
male.
6 Terminal number This represents the terminal number of a connector.
7 Component name This represents the name of a component.
8 Connector number This represents the connector number.
The letter represents which harness the connector is located in.
9 Splice The shaded circle represents that the splice is always on the
vehicle.
10 Optional splice The open circle represents that the splice is optional depending on
vehicle application.
11 Option abbreviation This represents that the circuit is optional depending on vehicle
application.
12 Ground (GND) This represents the ground connection. (See Ground Distribution in
Section 16 Wiring).
Ground connector number has no view face.
13 Page crossing This arrow represents that the circuit continues to an adjacent page.
The
Acorresponds with the Aon the adjoining page of the
electrical schematic.
14 Data linkThis represents that the system branches to another system
identified by cell data code.
15 Option description This represents a description of the option abbreviation used on the
page.
16 Connector views This represents the connector information.
This component side is described by the connector symbols.
17 Connector color This shows a code for the color of the connector:
B = Black
W = White
R = Red
G = Green
L = Blue
Y = Yellow
BR = Brown
O = Orange
GR = Gray
18 Shielded line The line enclosed by broken line circle represents shielded wire.
19 Light-emitting diodes As an illumination tool, in the circuit and instrument cluster.
GENERAL INFORMATION
16–4Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine ELECTRICAL TROUBLESHOOTING
Troubleshooting Wiring Problems
When troubleshooting wiring problems there are six steps which can aid in the procedure. The steps are listed and
explained below. Always check for non-factory equipped components added to the vehicle before doing any diagno-
sis. If the vehicle is equipped with these items, disconnect them to verify these add-on items are not the cause of the
problem.
Perform the following when troubleshooting a wiring problem:1. Verify the problem.
2. Verify any related symptoms (do this by performing operational checks on components that are in the same circuit).
3. Analyze the symptoms (use the wiring diagrams to determine what the circuit is doing, where the problem most likely is occurring and where the diagnosis will continue).
4. Isolate the problem area.
5. Repair the problem area.
6. Verify the proper operation (for this step, check for proper operation of all items on the repaired circuit).
Testing For Voltage
1. Connect the ground lead of a voltmeter to a known good ground.
2. Connect the other lead of the voltmeter to the selected test point. The vehicle ignition may need to be turned ON to check voltage. Refer to the appropriate test procedure.
Testing For Continuity
1. Remove the fuse for the circuit being checked or, disconnect the battery.
2. Connect one lead of the ohmmeter to one side of the circuit being tested.
3. Connect the other lead to the other end of the circuit being tested (low or no resistance means good continuity).
Testing For A Short To Ground
1. Remove the fuse and disconnect all items involved with the fuse.
2. Connect a test light or a voltmeter across the terminals of the fuse.
3. Starting at the fuse block, wiggle the wiring harness about six to eight inches apart and watch the voltmeter/testlight.
4. If the voltmeter registers voltage or the test light glows, there is a short to ground in that general area of the wiring harness.
Intermittent and Poor Connections
Most intermittent electrical problems are caused by faulty electrical connections or wiring. It is also possible for a
sticking component or relay to cause a problem. Before condemning a component or wiring assembly, check the
following items:
1. Connectors are fully seated
2. Spread terminals, or terminal push out
3. Terminals in the wiring assembly are fully seated into the connector/component and locked into position
4. Dirt or corrosion on the terminals (any amount of corrosion or dirt could cause an intermittent problem)
5. Damaged connector/component casing exposing the item to dirt or moisture
6. Wire insulation that has rubbed through causing a short to ground
7. Some or all of the wiring strands broken inside of the insulation
8. Wiring broken inside of the insulation
16
16–5Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine ELECTRICAL COMPONENTS
Battery Cable
•Before disconnecting connectors or removing elec-
trical parts, disconnect the negative battery cable.
Sensors, Switches, and Relays
•Handle sensors, switches and relays carefully. Do
not drop them or strike them against other objects.
LTSMW170001
BESM010024
16
16–9Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine GENERAL INFORMATION
Description
The power distribution system is designed to provide safe, reliable, centralized and convenient access to the distri-
bution of the electrical power required to operate all vehicle electrical and electronic systems.
The following components are used for power distribution:
•Battery
• Power Fuse Box
• Body Fuse and Relay Box
• Front Fuse and Relay Box
• Ignition Switch
• Fuses
• Circuit Breakers
• Relays
Operation
The power distribution system operates all electrical and electronic engine, transmission, chassis, safety, comfort and
convenience systems.
16
16–13Chery Automobile Co., Ltd.