Chery Tiggo 5 (T21). Service manual — part 380
34–
20
34
a. Turn ignition switch to LOCK.
b. Disconnect the immobilizer control module connector
I-018 and immobilizer coil connector.
c. Check if connectors are damaged.
a. Measure the immobilizer coil resistance.
3
Check immobilizer control module connector and immobilizer coil connector
RT21340100
Repair or replace connectors if necessary
NG
4
Check immobilizer coil
OK
RT21340120
-
+
1
2
3
4
Multimeter
Connection
Condition
Specified
Condition
2 - 3
Always
15 - 20 Ω
34–
21
34
b. Check for the continuity of immobilizer coil connector.
RT21340120
-
+
1
2
3
4
Multimeter
Connection
Condition
Specified
Condition
2 - 4
Always
No continuity
3 - 4
Always
No continuity
Replace immobilizer coil
NG
Replace immobilizer control module
OK
34–
22
34
DTC Confirmation Procedure
Confirm that battery voltage is between 11 and 14 V before performing the following procedures.
Turn ignition switch to LOCK.
Connect X-431 3G diagnostic tester (the latest software) to Data Link Connector (DLC), and make it
communicate with vehicle electronic module by the data network.
Turn ignition switch to ON.
Using X-431 3G diagnostic tester to record and clear the DTCs stored in the TCU.
Turn ignition switch to LOCK and wait for a few seconds.
Turn ignition switch to ON, and then select "Read Code".
If DTC is detected, the malfunction indicated by the DTC is current. Go to the diagnosis procedure - Step 1.
If DTC is not detected, the malfunction indicated by the DTC is intermittent. Please refer to Intermittent
DTC Troubleshooting.
Diagnosis Procedure
a. Using the X-431 3G diagnostic tester, match the ignition key (
).
DTC
B1305
Immobilizer has none key was storage
DTC Code
DTC Definition
DTC Detection
Conditions
Possible Causes
B1305
Immobilizer has none
key was storage
Ignition switch ON
Wire harness or connector
Immobilizer control module
CAUTION
If the ECM or immobilizer control module is replaced, match the system with the X-431 3G diagnostic
tester (
).
1
Match ignition key
Replace immobilizer control module
NG
System is operating normally
OK
34–
23
34
DTC Confirmation Procedure
Confirm that battery voltage is between 11 and 14 V before performing the following procedures.
Turn ignition switch to LOCK.
Connect X-431 3G diagnostic tester (the latest software) to Data Link Connector (DLC), and make it
communicate with vehicle electronic module by the data network.
Turn ignition switch to ON.
Using X-431 3G diagnostic tester to record and clear the DTCs stored in the TCU.
Turn ignition switch to LOCK and wait for a few seconds.
Turn ignition switch to ON, and then select "Read Code".
If DTC is detected, the malfunction indicated by the DTC is current. Go to the diagnosis procedure - Step 1.
If DTC is not detected, the malfunction indicated by the DTC is intermittent. Please refer to Intermittent
DTC Troubleshooting.
Diagnosis Procedure
a. Using the X-431 3G diagnostic tester, write the security code (
).
DTC
B1306
Security code was not programmed
DTC Code
DTC Definition
DTC Detection
Conditions
Possible Causes
B1306
Security code was not
programmed
Ignition switch ON
Wire harness or connector
Immobilizer control module
CAUTION
If the ECM or immobilizer control module is replaced, match the system with the X-431 3G diagnostic
tester (
).
1
Write security code
Replace the immobilizer control module
NG
System is operating normally
OK
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