Chery A1 2009 Service Manual page 829

Check reference values between BCM terminals and ground under the following conditions:
BCM TERMINAL NO.
27
28
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO.
B1301
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 ignition switch on, with the scan tool, view and erase stored DTCs in the BCM.
• Operate the lock and unlock switch several times.
• With X-431 select view active DTCs and data stream in the BCM.
• 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.
60
15–
DIAGNOSIS & TESTING
ITEM
Lock out
Unlock out
DTC DETECTION
DTC DEFINITION
Central lock control With the door lock
circuit low current switch activated
CONDITION
With the door lock or
unlock switch activated
DTC SET
CONDITION CONDITION
When the Body
Control Module
(BCM) detects the
lock control circuit
low condition.
Chery Automobile Co., Ltd.
DATA (AVERAGE DC
VOLTAGE)
12 V
POSSIBLE CAUSE
• Door lock actuator
• Harness or
connectors
• BCM