Geely Emgrand X7. Manual part — 478

10.2.4.7 DTC B1209 B1210

Fault diagnosis code Descriptions

B1209

Right front/right rear steering lamp，One of both has open circuit fault

B1210

The right front and right rear steering lamps are shorted to ground.

Circuit diagram:

NL11-3210b

6 SO31

3 SO31

8 CA12

8 IP48

9 IP48

5 CA12

8 CA18

5 CA18

6 SO24

3 SO24

左后组合灯
(左转向灯)

左前组合大灯
(左转向灯）

右前组合大灯
(右转向灯）

右后组合灯
(右转向灯）

BCM

TURN-LH LAMP

TURN-RH LAMP

Diagnostic Steps:

1

Check any fault code except forB1209 B1210

(a) Check if any fault code exists except for B1209 B1210

2

Measure right steering lamp voltage.

Yes

Go to

DTC list in 10.2.4.2

and repair according to

trouble codes.

No

Left rear

combinati

on lamp

(left

steering

lamp)

Left front

combination

headlamp (left
steering lamp)

Right front
combinatio

n headlamp

(right

steering

lamp)

Right

rearcombinatio

n lamp (right

steering lamp)

1911

(a) Turn the ignition switch to ON position.

(b) Turn on right turning lamp.

(c) Measure right front steering lamp harness

connector CA18 terminal8, right rear steering
lamp harness connector SO24 terminal6.

Standard Voltage: 11-14 V

NL11-3214b

9

8

7

4

3

2

6

5

1

1

2

6

3

4

5

CA18右前组合灯线束连接器

SO24右后组合灯线束连接器

3

Inspect the bulb.

(a) Check if the bulb of turning light is blown.

Is the bulb filament blown?

4

Inspect the communication among the BCM, the right front
steering lamp and the right rear steering lamp.

No

Go to step 4

Yes

Yes

Replace the bulb.

No

CA18 right front combination lamp harness connector

SO24 right rearcombination lamp harness connector

1912

(a) Turn the ignition switch to OFF

position.

(b) Disconnect BCM harness connector

IP48.

(c) Disconnect the steering lamp harness

connectorCA18、SO24.

(d) Measure resistance between BCM

wire harness connector IP48 terminal 9
and license lamp wire harness
connector CA12 terminal 8.

(e) Measure resistance between BCM

wire harness connector IP48 terminal 9
and license lamp wire harness
connector SO24 terminal 6.

Standard Resistance: Less than 1 Ω

Confirm if the resistance conforms to
standard value.

NL11-3215b

9

8

7

4

3

2

6

5

1

1

2

6

3

4

5

CA18右前组合灯线束连接器

IP48BCM线束连接器

SO24右后组合灯线束连接器

1 2 3

4 5 6

7 8 9

10 11 12 13

5

Inspect the communication among the right front steering lamp, the
right rear steering lamp and grounding.

No

Repair or replace the harness.

Yes

IP48BCMharness connector

CA18 right front combination lamp harness connector

SO24 right rearcombination lamp harness connector

1913

(a) Disconnect steering lamp harness

connector CA18, SO24.

(d) Measure the resistance between

terminal 5 of license lamp harness
connector CA18 and grounding.

(c)

Measure resistance between
license lamp wire harness
connector SO24 terminal 3 and
grounding.

Standard Resistance: Less than 1 Ω

(d) Measure the resistance between

terminal 8 of license lamp harness
connector CA18 and grounding.

(e)

Measure resistance between
license lamp wire harness
connector SO24 terminal 6 and
grounding.

Standard Resistance: More than 10 Ω
or higher

Confirm if the resistance conforms to

standard value.

NL11-3216b

9

8

7

4

3

2

6

5

1

1

2

6

3

4

5

CA18右前组合灯线束连接器

SO24右后组合灯线束连接器

6

Replace the BCM

(a) Replace BCM and refer to

Replacement of BCM in 11.8.8.1

.

Confirm the completion of repair.

7

The system is normal.

No

Repair or replace the harness.

Yes

Next

CA18 right front combination lamp harness connector

SO24 right rearcombination lamp harness connector

1914