Chery Tiggo 5 (T21). Manual - part 540

 

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Chery Tiggo 5 (T21). Manual - part 540

 

 

51–

5

51

The following is a list of symbols defined in the circuit diagram.

No.

Definition

Description

[1]

Battery

It indicates the power supply from battery positive to electrical 
equipment.

[2]

Fuse

This symbol indicates a fuse; "EF05" indicates the fuse number; 
"30A" indicates the rated amperage of the fuse.

[3]

Splice Point

The solid circle indicates that each intersecting wire is interconnected.

[4]

Relay

This symbol indicates a relay; "MAIN RELAY" indicates the relay 
name; "1", "2", "3" and "5" indicate the terminal numbers of the relay.

[5]

Color

It indicates the color of this wire. The color codes are as follows:
B = Black;
W = White; 
R = Red;
G = Green;
L = Blue;
Y = Yellow; 
Br = Brown;
O = Orange;
Gr = Gray; 
P = Pink;
V = Violet;
Lg = Light Green.
For example: "BrR" indicates that the main color is brown in the wire 
color, and the second color is red.

[6]

Connector

It indicates the junction connectors. "Λ" is the female connector, and 

"I-013" is the applicable number; "◊" is the male connector, and "E-010" 
is the applicable number. The number "2" and "3" inside the male 
connector indicates the terminal number. "----" indicates different 
terminals come from the same junction connectors.

[7]

Motor

This symbol indicates a motor.

[8]

Component Name

It indicates the name of the component.

51–

6

51

[9]

Connector No.

"E-011" indicates the connector number of this component, and the 
letter "E" indicates the wire harness code in which the connector is 
located. The connector codes are as follows: 
E = Engine Compartment Wire Harness; 
E = Engine Wire Harness; 
I = Instrument Panel Wire Harness; 
B = Body Wire Harness; 
F = Front Left Door Wire Harness; 
H = Front Right Door Wire Harness; 
L = Rear Left Door Wire Harness;
R = Rear Right Door Wire Harness; 
T = Back Door Wire Harness; 
P = Battery Wire Harness; 
U = Automatic Transmission Wire Harness (For CVT); 
N = Ground Wire Harness;
K = A/C Wire Harness.

[10]

Ground Point

It indicates the ground connection.

[11]

Switch

This symbol indicates a switch.

[12]

Vehicle Model

"CVT" indicates it is for CVT model; "MT" indicates it is for MT model.

[13]

Terminal No.

It indicates the terminal number in the connector of this component.

[14]

Ignition Switch

It indicates the power supply from ignition switch to electrical 
equipment.

[15]

Connected to

It indicates that the wire harness is connected to the circuit diagram 
on next page. The letter "A" is connected with "A" in the circuit 
diagram on the next page.

[16]

Fuse and Relay Box Name It indicates the name of the fuse and relay box.

[17]

Twisted-pair

It indicates that two wires are twisted.

[18]

Backlight Power Supply

It indicates the illumination power supply output from backlight 
adjustment dial.

[19]

LED

It is used for indicators, warning lights or illuminations in the switches 
or instrument cluster.

[20]

CAN

It indicates CAN wire in the electrical schematics. It is connected to 
CAN system.

[21]

Connector View

It indicates the cross section of connector and description of terminal 
number.

[22]

Connector Color

The letter "W" indicates the color of connector. The color codes are 
the same as above.

No.

Definition

Description

51–

7

51

Electrical Troubleshooting

Wire Harness Troubleshooting

The following 6 steps help to troubleshoot the wire harness. Be sure to check the non-original components 
added to the vehicle before performing any diagnosis. If the vehicle is equipped with these components, 
disconnect them to verify these added components are not the cause of problem.
Perform following steps when troubleshooting wire harness:
1. Verify problem.
2. Look for any related symptom (by inspecting components in the same circuit).
3. Analyze symptom (use the wire harness diagram to determine the layout of the circuit, the area where 

problems most likely occur and the area where diagnosis will continue).

4. Isolate problem area.
5. Repair problem area.
6. Check for proper operation (in this step, check all items in the repaired circuit for proper operation).

Voltage Test

1. Ground the negative probe (black) of voltmeter.
2. Connect the positive probe (red) of voltmeter to the selected measuring point (turn ignition switch on as 

necessary). Check voltage value displayed on the voltmeter.

Circuit Continuity Test

1. Turn off all the electrical equipment and ignition switch, and disconnect the negative battery cable.
2. Remove the circuit to be tested.
3. Connect two probes of ohmmeter to two ends of the circuit to be tested respectively, and check the circuit 

continuity (low resistance means there is good continuity in the circuit).

Short Circuit Test

1. Measure and record battery voltage.
2. Pull out the fuse of circuit to be tested or disconnect power supply end of the test circuit.
3. Connect the positive probe (red) of voltmeter to the positive battery terminal and the negative probe (black) 

to the power supply end of the circuit.

4. Check voltage value displayed on the voltmeter. If the voltage value of battery is displayed, it indicates that 

the test circuit is shorted to ground.

51–

8

51

Electrical Troubleshooting Tools

1. Jumper Wire

Jumper wire is used to create a temporary circuit. 
Connect the jumper wire between terminals of a circuit to 
bypass the switch.

2. Voltmeter

Voltmeter is used to measure circuit voltage. The 
measurement range should be higher than 15 V. 
Measure the voltage by connecting the positive probe 
(red) of voltmeter to the positive lead of the test 
component and the negative probe (black) to the 
negative lead or body ground.

3. Ohmmeter

Ohmmeter is used to measure resistance between two 
points in a circuit, or to check the circuit for an open or 
short.

RT21510010

CAUTION

 DO NOT connect a jumper wire from power supply end to body ground, as this may damage the wire 

harnesses or electrical components.

-

+

V

Power circuit

Voltmeter

Black

Ground

Red

RT21510020

-

+

Ground Line

Ohmmeter

Power Supply 
Line

RT21510030

CAUTION

 DO NOT connect ohmmeter to the circuit when applying voltage to the circuit, as this may result in 

inaccurate measured data or even damaging the ohmmeter.

 

 

 

 

 

 

 

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