Chery Tiggo 5 (T21). Manual — part 378
34–
12
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
DTC
B1300
Internal Control Module EEPROM Error
DTC Code
DTC Definition
DTC Detection
Conditions
Possible Causes
B1300
Internal Control
Module EEPROM
Error
Ignition switch ON
Immobilizer Control Module
CAUTION
If the ECM or immobilizer control module is replaced, match the system with the X-431 3G diagnostic
tester (
).
1
Replace immobilizer control module
System is operating normally
OK
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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. Turn ignition switch to LOCK.
b. Loosen and retighten the ground bolt or nut.
c. Check the installation position of the ground connection.
a. Turn ignition switch to LOCK.
DTC
B1301
Immobilizer and ECM authentication failed
DTC Code
DTC Definition
DTC Detection
Conditions
Possible Causes
B1301
Immobilizer and ECM
authentication failed
Ignition switch ON
Wire harness or connector
Immobilizer control module
ECM
CAUTION
If the ECM or immobilizer control module is replaced, match the system with the X-431 3G diagnostic
tester (
).
1
Check ground connection
Repair or replace ground connection
NG
2
Check engine control module (ECM) connector
OK
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b. Disconnect the ECM connector E-033.
c. Check if connector is damaged.
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. Replace the immobilizer control module and match it with X-431 3G diagnostic tester (
).
b. Reconnect all the wire harness connectors that are disconnected.
c. Check if DTC still exists.
RT21380241
Repair or replace connector if necessary
NG
3
Check immobilizer control module connector and immobilizer coil connector
OK
RT21340100
Repair or replace connectors if necessary
NG
4
Replace immobilizer control module
OK
Replace ECM
NG
System is operating normally
OK
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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 X-431 3G diagnostic tester, write the VIN data (
DTC
B1302
VIN Not Programmed
DTC Code
DTC Definition
DTC Detection
Conditions
Possible Causes
B1302
VIN Not Programmed
Ignition switch ON
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 VIN data
Replace immobilizer control module
NG
System is operating normally
OK
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