B3055 - No Transponder Modulation Or - Chery A1 2009 Service Manual

On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO.
B3055
B3056
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 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 CONNECTIONS
• Turn ignition switch off.
• Loosen and retighten ground screws on the body (See Ground Inspection in Section 15 Body & Accessories).
• Inspect ground connection C-202 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 harness or connections.
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 conditions that caused this code to set are not present at this time (See Diagnostic Help in Sec-
tion 15 Body & Accessories).
138
15–
DIAGNOSIS & TESTING
DTC DETECTION
DTC DEFINITION
No transponder
modulation or no
transponder
Ignition switch: ON
No transponder
fixed code
programmed
DTC SET
CONDITION CONDITION
The Immobilizer
control module
detects no
transponder or no
transponder
modulation
condition.
The Immobilizer
control module
detects that the
transponder is not
programmed.
Chery Automobile Co., Ltd.
POSSIBLE CAUSE
• Transponder
• Harness or
connectors
• Immobilizer control
module
• Transponder
• Harness or
connectors
• Immobilizer control
module