(a)  Disconnect the steering lamp harness connector 
CA12. 

(b)  Measure the resistance between terminal 5 of 
harness connector CA12 of turning light and 
grounding. 

Standard Resistance: Less than 1 Ω 

(d)  Measure the resistance between terminal 8 of 
license lamp harness connector CA12 and grounding. 

Standard Resistance: More than 10 Ω or higher 

Confirm whether the resistance is at a specified value. 

9

6

5

1

2

3

4

7

8

NL11-0173b

CA12 左前组合灯线束连接器

 

 

 

 

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. 

Note: Taking circuit faults of left front steering lamp as an example, circuit troubleshooting of the other 
five steering lamps can refer to left front steering lamp. 

 

Next 

No 

Repair or replace the harness. 

Yes 

CA12 left front combination lamp harness connector

1991

 
 

 

10.3.3.8 U012187.  U010087. U015187. U12501C. U12511C. U015587 

Fault diagnosis code Descriptions 

U012187 

Lose Communication With ABS 

U010087 

Lose Communication With EMS 

U015187 

Lose Communication With SRS 

U12501C 

BCM Stops Sending CAN Information 

U12511C 

BCM Stops CAN Communication 

U015587 

Lose Communication With ICU 

Circuit diagram: 

EM

0

1

EM

0

1

IP

6

1

IP

6

1

18

39

38

6

14

17

IP

6

1

IP

6

1

1

2

IP

0

1

IP

0

1

20

21

BCM

IPC

ECM

ABS

DLC

25

26

14

50

ACU

IP15

IP15

IP12

IP12

3

11

IP12

IP12

CA13

CA13

NL11-0018c

 

Diagnostic Steps: 

Refer to CAN Bus Signal Diagnosis 

 

1992

 
 

 

10.3.5 Dismantle and install 

10.3.5.1 BCM replacement 

Refer to 

11.8.8.1 Replacement of BCM

. 

 

1993

 
 

 

10.4 Programming and Setting 

10.4.1 Programming and Setting 

1. Cautions 

in 

compilation. 

Prior to control module programming; ensure that the following conditions have been met: 

A.  Vehicle system voltage 

a.  The charging system should be free from malfunctions. The charge system failure must be 

removed before programming the control module. 

b.  The accumulator voltage should be higher than 12V but lower than 16V. If the battery voltage is 

too low, the battery must be charged prior to the control module programming. 

c.  The accumulator recharger must not be connected to the vehicle accumulator. An incorrect system 

voltage or voltage fluctuation caused by the accumulator recharger will result in programming 
failure or cause the control module to be damaged. 

d.  Turn off or disable all electrical loads of the vehicle accumulator, such as the following 

components: 

– Inside 

lamp 

– 

Heating, venting and air condition (HVAC) system 

– 

Engine cooling fan and audios. 

B.  The ignition switch must be put in the correct position. Do not change the position of the ignition switch 

in the programming process, unless the diagnostic unit is indicated. 

C.  Make sure all tools including the following components and circuits are connected securely: 

a.  Control module serial data link tester 

b.  Connection at DLC 

c. Power 

circuit 

D.  Do not disturb the tool harness during programming. An unexpected interruption of programming will 

result in programming failure or control module damage. 

2.  Programming and setting after replacement of ECM. 

After replacing the ECM, an anti-theft read-in program must be executed for the ECU; refer to 

2.5.7.10 

Programming after Replacing ECM 

3.  Programming and setting after replacement of ABS module. 

The device needs not to program or set. 

4.  Programming and setting after replacement of combination instrument assembly. 

The device needs not to program or set. 

6.  Programming and Setting after Replacement of BCM. 

Remove anti-theft; and open the driver-side door. After carrying out IGN OFF / ON for three times within 8s, 
IGN is placed in ON; after carrying out the driver-side door OPEN / CLOSE / OPEN once within 8s, the 
driver-side door is placed in the OPEN; after carrying out IGN ON / OFF / ON once within 8s, IGN is placed in 
ON; and if successfully enter the learning code mode, the horn sounds once. Simultaneously press the emitter 
unlock key and lock key within 10s to enter into the system; if learning code successfully, the anti-theft horn 
sounds twice; and if it is the first key with successful code learning in this learning process, wipe all previous 
learned codes. If learning code fails, the anti-theft horn sounds four times. Repeat step 5 and step8, and then learn 
the next remote control unit. Clean the previous ID after learninga the first key at every turn. 

1994