Nissan X-Trail 32. Manual - part 202

BRC-274

< DTC/CIRCUIT DIAGNOSIS >

[FORWARD EMERGENCY BRAKING]

C1A05 BRAKE SW/STOP LAMP SW

C1A05 BRAKE SW/STOP LAMP SW

DTC Logic

INFOID:0000000010766627

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Stop lamp switch circuit
• Stop lamp switch
• Incorrect stop lamp switch installation
• BCM

FAIL-SAFE

FEB system is canceled.

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC “C1A05” is displayed with DTC “U1000”, first diagnose the DTC “U1000”.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

BRC-296, "DTC Logic"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the FEB system ON.

3.

Perform “All DTC Reading” with CONSULT. 

4.

Check if the “C1A05” is detected as the current malfunction in “Self Diagnostic Result” of “LASER/
RADAR”. 

Is “C1A05” detected as the current malfunction?

YES

>> Refer to 

BRC-274, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010766628

1.

CHECK DTC PRIORITY

If DTC “C1A05” is displayed with DTC “U1000”, first diagnose the DTC “U1000”.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

BRC-296, "DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK STOP LAMP

Check the stop lamp when brake pedal is depressed/not depressed.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check the stop lamp. Refer to 

EXL-176, "Symptom Table"

 (LED headlamp) or 

EXL-361, "Symp-

tom Table"

 (Halogen headlamp)

3.

CHECK STOP LAMP CIRCUIT

1.

Turn ignition switch ON.

2.

Perform “STOP LAMP” on “Active test” of “BCM-HEADLAMP” with CONSULT.

Is the inspection result normal?

YES

>> GO TO 4.

DTC

Trouble diagnosis name

DTC detecting condition

C1A05

BRAKE SW/STOP L SW
(Brake switch/Stop lamp switch)

Stop lamp switch signal received from BCM is abnormal

C1A05 BRAKE SW/STOP LAMP SW

BRC-275

< DTC/CIRCUIT DIAGNOSIS >

[FORWARD EMERGENCY BRAKING]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

NO

>> Check the stop lamp circuit. Refer to 

EXL-176, "Symptom Table"

 (LED headlamp) or 

EXL-361,

"Symptom Table"

 (Halogen headlamp)

4.

PERFORM SELF-DIAGNOSIS OF CHASSIS CONTROL MODULE

1.

Perform “All DTC Reading”. 

2.

Check if any DTC is detected in “Self Diagnostic Result” of “CHASSIS CONTROL”. Refer to 

DAS-204,

"DTC Index"

.

Is any DTC detected?

YES

>> Repair or replace the malfunctioning parts identified by the self-diagnosis result.

NO

>> GO TO 5.

5.

PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

1.

Perform “All DTC Reading”. 

2.

Check if any DTC is detected in “Self Diagnostic Result” of “ABS”. Refer to 

BRC-84, "DTC Index"

.

Is any DTC detected?

YES

>> Repair or replace the malfunctioning parts identified by the self-diagnosis result. 

NO

>> GO TO 6.

6.

PERFORM SELF-DIAGNOSIS OF BCM

1.

Perform “All DTC Reading”. 

2.

Check if any DTC is detected in “Self Diagnostic Result” of “BCM”. Refer to 

BCS-78, "DTC Index"

.

Is any DTC detected?

YES

>> Repair or replace the malfunctioning parts identified by the self-diagnosis result. 

NO

>> GO TO 7.

7.

PERFORM SELF-DIAGNOSIS OF DISTANCE SENSOR

Check if any DTC is detected in “Self Diagnostic Result” of “LASER/RADAR”. Refer to 

BRC-247, "DTC Index"

. 

Is any DTC detected?

YES

>> Repair or replace the malfunctioning parts identified by the self-diagnosis result. 

NO

>> INSPECTION END

BRC-276

< DTC/CIRCUIT DIAGNOSIS >

[FORWARD EMERGENCY BRAKING]

C1A07 CVT

C1A07 CVT

DTC Logic

INFOID:0000000010927801

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Transmission assembly
• TCM

FAIL-SAFE

FEB system is canceled.

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC “C1A07” is displayed with DTC “U1000”, first diagnose the DTC “U1000”.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

BRC-296, "DTC Logic"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn ON FEB system and drive. 

CAUTION:

Always drive safely. 

3.

Stop the vehicle.

4.

Perform “All DTC Reading” with CONSULT. 

5.

Check if the “C1A07” is detected as the current malfunction in “Self Diagnostic Result” of “LASER/
RADAR”. 

Is “C1A07” detected as the current malfunction?

YES

>> Refer to 

BRC-276, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010927802

1.

CHECK DTC PRIORITY

If DTC “C1A07” is displayed with DTC “U1000”, first diagnose the DTC “U1000”.
Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

BRC-296, "DTC Logic"

.

NO

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS OF TCM

Check if any DTC is detected in “Self Diagnostic Result” of “TRANSMISSION”. 

Is any DTC detected?

YES

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

TM-288, "DTC Index"

 (Gasoline engine models) or 

TM-529, "DTC Index"

 (Diesel engine models).

NO

>> Replace the distance sensor. Refer to 

BRC-304, "Removal and Installation"

. 

DTC

Trouble diagnosis name

DTC detection condition

C1A07

CVT CIRCUIT
(CVT circuit)

If CVT is malfunctioning

C1A12 RADAR OFF-CENTER

BRC-277

< DTC/CIRCUIT DIAGNOSIS >

[FORWARD EMERGENCY BRAKING]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1A12 RADAR OFF-CENTER

DTC Logic

INFOID:0000000010766413

DTC DETECTION LOGIC

POSSIBLE CAUSE

Radar is off the aiming point

FAIL-SAFE

The following systems are canceled.
• Vehicle-to-vehicle distance control mode
• Distance Control Assist (DCA)
• Forward Emergency Braking (FEB)
• Predictive Forward Collision Warning (PFCW)

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the FEB system ON.

3.

Perform “All DTC Reading” with CONSULT.

4.

Check if the “C1A12” is detected as the current malfunction in “Self Diagnostic Result” of “LASER/
RADAR”.

Is “C1A12” detected as the current malfunction?

YES

>> Refer to 

BRC-277, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010766414

1.

ADJUST RADAR AIMING

1.

Adjust the radar beam aiming with CONSULT. Refer to 

BRC-262, "Description"

. 

2.

Perform “All DTC Reading”. 

3.

Check if the “C1A12” is detected in “Self Diagnostic Result” of “LASER/RADAR”. 

Is “C1A12” detected?

YES

>> Replace the distance sensor. Refer to 

BRC-304, "Removal and Installation"

.

NO

>> INSPECTION END

DTC

Trouble diagnosis name

DTC detecting condition

C1A12

RADAR OFF-CENTER
(Radar off-center)

Radar of distance sensor is off the aiming point