Chery Tiggo. Manual — part 430
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO.
DTC DEFINITION
DTC DETECTION
CONDITION
DTC SET
CONDITION
POSSIBLE CAUSE
B3055
No transponder
modulation or no
transponder
Ignition switch: ON
The Immobilizer
control module
detects no
transponder or no
transponder
modulation
condition.
• Transponder
• Harness or
connectors
• Immobilizer control
module
B3056
No transponder
fixed code
programmed
Ignition switch: ON
The Immobilizer
control module
detects that the
transponder is not
programmed.
• Transponder
• Harness or
connectors
• Immobilizer control
module
DTC Confirmation Procedure:
Before performing the following procedure, confirm that battery voltage is more than 12 V.
• Turn ignition switch off.
• Connect the X-431 scan tool to the Data Link Connector (DLC) - use the most current software available.
• Turn the ignition switch on, with the scan tool, view and erase stored DTCs in the Immobilizer control module.
• Try to start the engine.
• Turn ignition switch off, and wait a few seconds, then turn the ignition switch on.
• With the scan tool, view active DTCs in the Immobilizer control module.
• If the DTC is detected, the condition is current. Go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help and Intermittent DTC Trou-
bleshooting in Section 15 Body & Accessories for more information).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.
CHECK GROUND CONNECTION
• Turn ignition switch off.
• Loosen and retighten ground screws on the body (See Ground Inspection in Section 15 Body & Accessories).
• Inspect ground connection C-204 mounting position (See Vehicle Wiring Harness Layout - Main Harness in
Section 16 Wiring).
Is the ground connection OK?
Yes
>>
Go to the next step.
No
>>
Repair or replace ground connection.
2.
CHECK IMMOBILIZER CONTROL MODULE DTC
• With the scan tool, view DTCs in the Immobilizer control module. Refer to DTC confirmation procedure.
Is DTC B3055 present?
Yes
>>
Go to the next step.
No
>>
The condition that caused the DTC to set is currently not present (See Diagnosis & Testing Diagnostic
Help in Section 15 Body & Accessories).
DIAGNOSIS & TESTING
15
3.
CHECK IMMOBILIZER CONTROL MODULE ELECTRICAL CONNECTOR
• Turn ignition switch off.
• Disconnect the Immobilizer control module electrical
connectors C-026 (1).
• Inspect the electrical connector for damage.
Is the electrical connector OK?
Yes
>>
Go to the next step.
No
>>
Repair or replace the electrical connector
as necessary.
4.
CHECK IMMOBILIZER COIL
• Check the resistance of the Immobilizer coil between the Immobilizer coil connector C-026, pin 9 and pin 11.
IMMOBILIZER COIL
TERMINAL
IMMOBILIZER COIL
TERMINAL
9
11
Is the resistance range from 5 to 20 ohms?
Yes
>>
Go to the next step.
No
>>
Replace the Immobilizer coil.
DIAGNOSIS & TESTING
LTSMD150019
5.
CHECK IMMOBILIZER COIL
• Check the resistance of the Immobilizer coil between the Immobilizer coil connector C-026, pin 9 and pin 10.
• Check the resistance of the Immobilizer coil between the Immobilizer coil connector C-026, pin 11 and pin 10.
IMMOBILIZER
COIL
TERMINAL
IMMOBILIZER
COIL
TERMINAL
CONTINUITY
9
10
Not
11
10
• Continuity should not exist.
Is the check result normal?
Yes
>>
Go to the next step.
No
>>
Replace the Immobilizer coil.
6.
REPLACE AND PROGRAM TRANSPONDER
• Reconnect the Immobilizer control module electrical
connector C-026.
• Replace the chip (1) with a new one.
DIAGNOSIS & TESTING
VISMD150018
15
• Turn ignition switch on.
• With the X-431 scan tool, choose T11 series.
− Choose
⬙immobilize⬙.
− Choose
⬙input code⬙.
− Input the safety code.
− Click the small keyboard.
− Click
⬙OK⬙.
− Choose
⬙Immobilizer adapt⬙.
− Choose
⬙Key learning⬙ immediately.
− Click
⬙OK⬙.
• Try to start the engine.
Is the warning light flashing and DTC B3055
present?
Yes
>>
Go to the next step.
No
>>
No problem found at this time.
This concern may have been caused by
the transponder.
Erase all codes before returning the vehi-
cle to the customer.
DIAGNOSIS & TESTING
VISMD150019T
VISMD150020T
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