Inspection And Repair Of Bcm Computer (Antitheft Computer) Circuit; Check Of Bcm Computer (Antitheft Computer) Circuit - Chery QQ Service Manual

3 Inspection and repair of BCM computer (antitheft computer) circuit

Connect the plug on to BCM computer (antitheft computer). As shown in the figure
above, check each circuit terminal, with the result as tabulated below.
Figure
Connection
Check
A1-Grounding
A2-Grounding
A3-Grounding
A4-Grounding
A5-Grounding
A6-Grounding
A7-Grounding
A8-Grounding
A9-Grounding
A10-Grounding
A11-Grounding
Chery QQ Service Manual

Check of BCM Computer (antitheft computer) Circuit

Condition
Ignition switch "ON", power window switch
"UP"
Ignition switch "ON", power window switch
"DOWN"
Ignition switch "ON"
Ignition switch "Off"
Ignition switch starts the motor, and makes it
work
Ignition switch starts the motor but fails
Unlock door with key
Lock door with key
Normal
Normal
Normal
Normal
Normal
Antitheft works
Antitheft fails
Central control lock "OFF"
Central control lock "ON"
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BCM Computer Control System
Standard Value
Power supply voltage
Conducting
Power supply voltage
Nonconducting
Power supply
voltage
Nonconducting
Conducting
Nonconducting
Power supply voltage
Power supply
voltage
Power supply voltage
Grounding
Grounding
Power supply
voltage
Nonconducting
Power supply
voltage
Conducting