Infiniti QX56 (Z62). Manual - part 361

DAS

C1B52 BSW/BSI INDICATOR OPEN CIRCUIT

DAS-481

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

Is the inspection result normal?

YES

>> Replace BSW indicator.

NO

>> Replace side radar. Refer to 

DAS-523, "Removal and Installation"

.

BSW indicator

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

D73 (LH)

1

Ignition switch
OFF 

⇒

 ON

(Approx. 2 sec.)

6 V

D74 (RH)

DAS-482

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

C1B53 SIDE RADAR RIGHT MALFUNCTION

C1B53 SIDE RADAR RIGHT MALFUNCTION

DTC Logic

INFOID:0000000006223899

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the BSW system ON.

3.

Perform “All DTC Reading” with CONSULT-III.

4.

Check if the “C1B53” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “C1B53” detected as the current malfunction?

YES

>> Refer to 

DAS-482, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000006223900

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1B53” in “Self Diagnostic Result” of “ICC/ADAS”. 

Is “U1000” detected?

YES

>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.

Refer to 

DAS-486, "ADAS CONTROL UNIT : DTC Logic"

. 

NO

>> GO TO 2.

2.

CHECK SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in “Self Diagnostic Result” of “SIDE RADAR RIGHT”. 

Is any DTC detected?

YES

>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to

DAS-447, "DTC Index"

 (SIDE RADAR RIGHT).

NO

>> Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

.

DTC

(On board 

display)

Trouble diagnosis name

DTC detecting condition

Possible cause

C1B53

(84)

SIDE RDR R MALF

ADAS control unit detects that side radar RH has 
a malfunction.

Side radar RH

DAS

C1B54 SIDE RADAR LEFT MALFUNCTION

DAS-483

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

C1B54 SIDE RADAR LEFT MALFUNCTION

DTC Logic

INFOID:0000000006223901

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the BSW system ON.

3.

Perform “All DTC Reading” with CONSULT-III.

4.

Check if the “C1B54” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “C1B54” detected as the current malfunction?

YES

>> Refer to 

DAS-483, "Diagnosis Procedure"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000006223902

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “C1B54” in “Self Diagnostic Result” of “ICC/ADAS”. 

Is “U1000” detected?

YES

>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.

Refer to 

DAS-486, "ADAS CONTROL UNIT : DTC Logic"

. 

NO

>> GO TO 2.

2.

CHECK SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in “Self Diagnostic Result” of “SIDE RADAR LEFT”. 

Is any DTC detected?

YES

>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to

DAS-445, "DTC Index"

 (SIDE RADAR LEFT).

NO

>> Replace the ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

.

DTC

(On board 

display)

Trouble diagnosis name

DTC detecting condition

Possible cause

C1B54

(85)

SIDE RDR L MALF

ADAS control unit detects that side radar LH has 
a malfunction.

Side radar LH

DAS-484

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

C1B55 RADAR BLOCKAGE

C1B55 RADAR BLOCKAGE

DTC Logic

INFOID:0000000006223903

DTC DETECTION LOGIC

NOTE:

DTC “C1B55” may be detected under the following conditions except for possible cause. (Explain to the customer about the difference
between the contamination detection function and the indication when the malfunction is detected and tell them “This is not malfunc-
tion”.)

• The side radar may be blocked by temporary ambient conditions such as splashing water, mist or fog. 

• The blocked condition may also be caused by objects such as ice, frost or dirt obstructing the side radar.

• Due to the nature of radar technology it is possible to get a blockage warning and not actually be blocked. This is rare and is known as

a false blockage warning. A false blocked condition either self-clears or clears after an ignition cycle.

Diagnosis Procedure

INFOID:0000000006223904

1.

CHECK THE REAR BUMPER

Check rear bumper near the side radar contaminated with foreign materials.

>> GO TO 2.

2.

CHECK THE SIDE RADAR

Check side radar and the side radar outskirts contaminated with foreign materials. 

>> GO TO 3.

3.

CHECK THE SIDE RADAR INSTALL CONDITION

Check side radar installation condition (installation position, properly tightened, a bent bracket).

>> GO TO 4.

4.

INTERVIEW

1.

Ask if there is stain or foreign materials.

2.

Ask if there is any temporary ambient condition such as splashing water, mist or fog.

3.

Ask if there is any object such as ice, frost or dirt obstructing the side radar.

Is any of above conditions seen?

YES

>> Explain to the customer about the difference between the blockage detection function and the

indication when the malfunction is detected and tell them “This is not malfunction”.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

C1B55

RADAR BLOCKAGE

Side radar is blocked.

Stain or foreign materials is deposit-
ed.