Chery S11 / Chery QQ. Manual — part 60

Chery QQ Service Manual BCM Computer Control System

A21 Grounding

A22

Signal for elevation of left rear power window

A23

Signal for decline of left rear power window

A25

Antitheft indication signal to left turn indicator

B1

Elevation signal to left front power window switch

B2

Decline signal to right front power window switch

B3

Elevation signal to right front power window switch

B4

Decline signal to right rear power window switch

B5

Elevation signal to right front power window switch

B6

Decline signal to left rear power window switch

B7

Elevation signal to left rear power window switch

B9

Decline signal to left front power window switch

B10

Switch of antitheft device

B11

Signal for boot switch

B13

Signal of antitheft indicator

B14

Signal for door switch

B16 Antitheft

antenna

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Chery QQ Service Manual BCM Computer Control System

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 Check of BCM Computer (antitheft computer) Circuit

Connection

Check

Condition Standard

Value

Ignition switch “ON”, power window switch

“UP”

Power supply voltage

A1-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Conducting

Ignition switch “ON”

Power supply voltage

A2-Grounding

Ignition switch “Off”

Nonconducting

Ignition switch starts the motor, and makes it

work

Power supply

voltage

A3-Grounding

Ignition switch starts the motor but fails

Nonconducting

Unlock door with key

Conducting

A4-Grounding

Lock door with key

Nonconducting

A5-Grounding

Normal

Power supply voltage

A6-Grounding

Normal

Power supply

voltage

A7-Grounding

Normal

Power supply voltage

A8-Grounding

Normal Grounding

A9-Grounding

Normal Grounding

Antitheft works

Power supply

voltage

A10-Grounding

Antitheft fails

Nonconducting

Central control lock “OFF”

Power supply

voltage

A11-Grounding

Central control lock “ON”

Conducting

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Chery QQ Service Manual BCM Computer Control System

Central control lock “ON”

Power supply

voltage

A12-Grounding

Central control lock “OFF”

Conducting

Antitheft works

Power supply voltage

A13-Grounding

Antitheft fails

Nonconducting

Ignition switch “ON”, power window switch

“UP”

Conducting

A14-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Power supply

voltage

Ignition switch “ON”, power window switch

“UP”

Power supply

voltage

A15-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Conducting

Ignition switch “ON”, power window switch

“UP”

Conducting

A16-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Power supply

voltage

Ignition switch “ON”, power window switch

“UP”

Power supply

voltage

A17-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Conducting

Ignition switch “ON’, power window switch

“UP”

Conducting

A18-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Power supply voltage

A19-Grounding

Normal

Power supply

voltage

A21-Grounding

Normal

Conducting

Ignition switch “ON”, power window switch

“UP”

Power supply

voltage

A22-Grounding

Ignition switch “ON”, power window switch

“Down”

Conducting

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Chery QQ Service Manual BCM Computer Control System

Ignition switch “ON”, power window switch

“UP”

Conducting

A23-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Power supply

voltage

Antitheft works

Power supply

voltage

A25-Grounding

Antitheft fails

Nonconducting

Ignition switch “ON”, power window switch

“UP”

Conducting

B1-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Nonconducting

Ignition switch “ON”, power window switch

“UP”

Nonconducting

B2-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Conducting

Ignition switch “ON”, power window switch

“UP”

Conducting

B3-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Nonconducting

Ignition switch “ON”, power window switch

“UP”

Nonconducting

B4-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Conducting

Ignition switch “ON”, power window switch

“UP”

Conducting

B5-Grounding

Ignition switch “ON” power window switch

“DOWN”

Nonconducting

Ignition switch “ON”, power window switch

“UP”

Nonconducting

B6-Grounding

Ignition switch “ON”, power window switch

“DOWN”

Conducting

B7-Grounding

Ignition switch “ON”, power window switch

“UP”

Conducting

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