Chery Tiggo 5 (T21). Manual — part 396
35–
59
35
DTC
B100813 Rear Fog Control Circuit Circuit Open
DTC
B100871 Rear Fog Control Circuit Actuator Stuck
ET21350190
INSTRUMENT
PANEL FUSE
AND RELAY BOX
IGNITION SWITCH
ON OR START
IGNITION SWITCH
ON OR ACC
R
RBr
7.5A
RF07
7.5A
RF13
E1
A25
BATTERY
60A
MF03
ENGINE
COMPARTMENT
FUSE AND
RELAY BOX
7
3
RG
A9
13
BCM
3
E-061
E-061
W
E-072
E-072
E1
1
2
3
4
5
6
7
8
9 10 11 12
13
85
85
87
87 30
87 30
30
86
86
85
86
14 15 16 17 18 19 20 21 22 23 24
25
27
26
A32
A31
A30
A29
A28
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A27
A26
A25
A24
A23
A22
A21
A20
A19
A18
A17
B
I-007
I-007
L
I-005
I-005
B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16
B17 B18 B19 B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31 B32
L
B-047
B-047
B-046
B-043
WB
WB
B
B
B
B
WB
C13
F1
2
1
2
1
REAR
RIGHT
FOG
LIGHT
REAR
LEFT
FOG
LIGHT
B-022
B-045
2
A32
A20
A5
5
3
FRONT
FOG
REAR
FOG
COMBINATION
LIGHT
SWITCH
B
GL
LY
B-028
B-037
I-011
F1
B
B-046
C1
C10 C11 C12 C13 C14 C15 C16 C17 C18
C2 C3 C4 C5
C6 C7 C8 C9
C20
C19
W
B-043
1
2
B
B-028
B
B-037
1
2
3
4
5
6
7
8
9
10
B
I-011
35–
60
35
Self-diagnosis Detection Logic
HINT:
While performing the electrical diagnosis and testing, always refer to the relevant circuit diagram for the
special circuit and component information.
Diagnosis Procedure
a. Remove the rear fog light bulb, and check if the rear fog light bulb filament is blown.
Use the circuit diagram as a guide to perform the following procedures:
a. Turn ignition switch to LOCK, and disconnect the negative battery cable.
b. Disconnect the Body Control Module (BCM) connectors B-043 and E-072.
c. Disconnect the rear left fog light wire harness connector B-028 and rear right fog light wire harness
connector B-037.
d. Check if wire harnesses are worn, pierced, pinched or partially broken.
e. Look for broken, bent, protruded or corroded terminals.
f. Check if the related connector terminal contact pins are in good condition.
DTC Code
DTC Definitions
DTC Detection
Conditions
DTC Setting Conditions
B100813
Rear Fog Control
Circuit Circuit Open
Ignition switch ON
Rear fog light bulb
Wire harness or connector
Body Control Module (BCM)
B100871
Rear Fog Control
Circuit Actuator Stuck
1
Check rear fog light bulb
Replace rear fog light bulb
NG
2
Check wire harness and connector
OK
Repair or replace related wire harness and
connector
NG
OK
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35
a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the Body Control Module (BCM) connectors
B-043 and E-072.
d. Using a digital multimeter, check for continuity between
terminal C13 of BCM connector B-043 and terminal E1 of
BCM connector E-072 to check if it is short to power
supply according to the table below.
Standard Condition
e. Using a digital multimeter, check for continuity between
terminal C13 of BCM connector B-043 and body ground
to check if it is short to ground according to the table
below.
Standard Condition
3
Check rear fog light control circuit
-
+
RT21350720
C1
C10 C11 C12 C13 C14 C15 C16 C17 C18
C2 C3 C4 C5
C6 C7 C8 C9
C20
C19
B-043
E-072
E1
Multimeter
Connection
Condition
Specified
Condition
B-043 (C13) -
E-072 (E1)
Always
No continuity
-
+
RT21350730
C1
C10 C11 C12 C13 C14 C15 C16 C17 C18
C2 C3 C4 C5
C6 C7 C8 C9
C20
C19
B-043
Multimeter
Connection
Condition
Specified
Condition
B-043 (C13) -
Body ground
Always
No continuity
Repair or replace related wire harness and
connector
NG
OK
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35
a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the Body Control Module (BCM) connector
B-043.
d. Disconnect the rear left fog light wire harness connector
B-028 and rear right fog light wire harness connector
B-037.
e. Using a digital multimeter, check for continuity between
terminal C13 of BCM connector B-043 and terminal 2 of
rear left fog light wire harness connector B-028 according
to the table below.
Standard Condition
f. Using a digital multimeter, check for continuity between
terminal C13 of BCM connector B-043 and terminal 2 of
rear right fog light wire harness connector B-037
according to the table below.
Standard Condition
4
Check wire harness and connector (rear fog light - Body Control Module (BCM))
-
+
RT21350740
C1
C10 C11 C12 C13 C14 C15 C16 C17 C18
C2 C3 C4 C5
C6 C7 C8 C9
C20
C19
B-043
1
2
B-028
Multimeter
Connection
Condition
Specified
Condition
B-043 (C13) -
B-028 (2)
Always
Continuity
-
+
RT21350750
C1
C10 C11 C12 C13 C14 C15 C16 C17 C18
C2 C3 C4 C5
C6 C7 C8 C9
C20
C19
B-043
1
2
B-037
Multimeter
Connection
Condition
Specified
Condition
B-043 (C13) -
B-037 (2)
Always
Continuity
Repair or replace related wire harness and
connector
NG
OK
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