Geely Emgrand X7. Manual part — 476

10.2.4.5 DTC B1205 B1206

Fault diagnosis code Descriptions

B1205

License plate lamp is in open-circuit fault.

B1206

License plate lamp is shorted to ground failure.

Circuit diagram:

NL11-3206b

1 SO41

2 SO41

1 SO44

2 SO44

LICENSE

POS-LAMP

8 IP49

左牌照灯

右牌照灯

BCM

Diagnostic Steps:

1

Check any fault code except forB1205 B1206

(a) Check if any fault code exist except for B1205 B1206

2

Measure the voltage of the license plate lamp.

Yes

Go to

(DTC) list in 10.2.4.2

and repair according

to trouble codes.

No

left

license

lamp

right

license

lamp

1903

(a) Turn the ignition switch to ON position.

(b) Turn on lighting combination switch.

(c) Measure voltage of left license lamp harness

connector SO41 terminal1, right license brake
lamp harness connector SO44 terminal.

Standard Voltage: 11-14 V

Confirm if the voltage conforms to standard value.

NL11-3207b

2

1

2

1

S041左牌照灯线束连接器

S044右牌照灯线束连接器

3

Inspect the bulb.

(a) Inspect whether licence lamp bulb is burned out.

Confirm whether the license plate lamp bulb is blown out.

4

Inspect the communication between BCM and license plate
lamp.

No

Go to step 4

Yes

Yes

Replace the bulb

No

SO41 left license lamp harness connector

SO44 right license lamp harness connector

1904

(a) Turn the ignition switch to OFF position.

(b) Disconnect BCM harness connector IP49.

(c) Disconnect licence lamp wire harness

connector SO41, SO44.

(d) Measure resistance between BCM wire

harness connector IP49 terminal 8 and license
lamp wire harness connector SO41 terminal 1.

(e) Measure resistance between BCM wire

harness connector IP49 terminal 8 and license
lamp wire harness connector SO44 terminal 1.

Standard Resistance: Less than 1 Ω

Confirm if the resistance conforms to standard
value.

NL11-3208b

2

1

2

1

S041左牌照灯线束连接器

S044右牌照灯线束连接器

IP49BCM线束连接器

1 2 3

4 5 6

7 8 9

10 11 12 13

5

Inspect the communication between the license plate lamp
and grounding.

(a) Disconnect license lamp harness connector

SO41, SO44.

(b) Measure resistance between license lamp

wire harness connector RF12 terminal 2 and
BCM wire harness connector IP49 terminal
3.

(c) Measure resistance value between license

lamp harness connector SO44 terminal2 and
grounding.

Standard Resistance: Less than 1 Ω

(d) Measure the resistance between terminal 1

of license lamp harness connector SO41 and
grounding.

(e) Measure resistance value between license

lamp harness connector SO44 terminal1 and
grounding.

Standard Resistance: More than 10 Ω or higher

NL11-3209b

2

1

2

1

S041左牌照灯线束连接器

S044右牌照灯线束连接器

No

Repair or replace the harness.

Yes

SO41 left license lamp harness connector

SO44 right license lamp harness connector

IP49BCMharness connector

SO41 left license lamp harness connector

SO44 right license lamp harness connector

1905

Confirm if the resistance conforms to standard

value.

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

1906