Chery Tiggo 5 (T21). Manual — part 421
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23
37
Self-diagnosis Detection Logic
Diagnosis Procedure
a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Pull out the fuse MF03 (60A).
d. Check if the fuse is blown.
a. Remove the anti-theft horn from the malfunctioning vehicle and install it to a new vehicle and perform a
test.
DTC Code
DTC Definition
DTC Detection
Condition
Warning Light
Condition
Possible Cause
B101D11
Siren Output Control
Circuit Circuit Short to
Ground
Ignition switch ON
ON
Fuse
Anti-theft horn
Wire harness or
connector
Body Control
Module (BCM)
B101D13
Siren Output Control
Circuit Circuit Open
B101D12
Siren Output Control
Circuit Circuit Short to
Battery
CAUTION
When performing the circuit diagnosis and test, always refer to the circuit diagram for the specific circuit
and the component information.
1
Check fuse MF03 (60A)
Replace fuse MF03 (60A)
NG
2
Check anti-theft horn
OK
Replace anti-theft horn
NG
OK
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a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the body wire harness connector B-043 and
B-048.
d. Using a digital multimeter, check for continuity between
body wire harness connectors B-043 and B-048
according to the table below.
a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the engine compartment wire harness
connectors E-061 and E-072.
d. Using a digital multimeter, check for continuity between
engine compartment wire harness connectors E-061 and
E-072 according to the table below.
3
Check body wire harness and connector
RT21370710
-
+
1
2
3
4
5
11
12
13
14
15
6
7
8
9
10
22 21 20 19 18 17
16
C1
C10 C11 C12 C13 C14 C15 C16 C17 C18
C2 C3 C4 C5
C6 C7 C8 C9
C20
C19
B-043
B-048
Multimeter
Connection
Condition
Specified
Condition
B-043 (C4) -
B-048 (6)
Always
Continuity
Repair or replace body wire harness and
connector
NG
4
Check wire harness and connector
OK
RT21370700
-
+
E-072
E1
3
E-061
Multimeter
Connection
Condition
Specified
Condition
E-061 (3) - E-072
(E1)
Always
Continuity
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e. Disconnect the engine compartment wire harness
connectors E-070 and E-053.
f. Using a digital multimeter, check for continuity between
engine compartment wire harness connectors E-070 and
E-053 according to the table below.
g. Disconnect the engine compartment wire harness
connector E-053 and ground E-032.
h. Using a digital multimeter, check for continuity between
engine compartment wire harness connector E-053 and
ground E-032 according to the value(s) in the table
below.
a. Connect all connectors.
b. Connect the negative battery cable.
c. Turn ignition switch to ON.
d. Use the X-431 3G diagnostic tester (the latest software) to record and clear the DTCs stored in the Body
Control Module (BCM).
e. Turn the ignition switch to LOCK and wait for a few seconds.
f. Turn ignition switch to ON.
g. Use the X-431 3G diagnostic tester (the latest software) to read DTCs stored in the Body Control Module
(BCM) again.
RT21370720
-
+
E-070
E-053
2
1
1
2
3
4
5
6
7
8
9 10
11 12 13 14 15
18
17
16
19 20 21 22
Multimeter
Connection
Condition
Specified
Condition
E-070 (6) - E-053
(2)
Always
Continuity
RT21370730
-
+
E-053
E-032
2
1
Multimeter
Connection
Condition
Specified
Condition
E-053 (1) - E-032
Always
Continuity
Repair or replace engine compartment
wire harness and connector
NG
5
Reconfirm DTCs
OK
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Result
Proceed to
DTC B101D11, B101D13 and B101D12 are output
NG
No DTC is output
OK
Replace Body Control Module (BCM)
NG
System is normal
OK
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