Nissan Qashqai J11. Manual - part 936

PB-126

< DTC/CIRCUIT DIAGNOSIS >

U0422 BCM SIGNAL

U0422 BCM SIGNAL

DTC Description

INFOID:0000000010833711

DTC DETECTION LOGIC

POSSIBLE CAUSE

• BCM
• Electric parking brake control module

FAIL-SAFE

Automatic release is prohibited.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Turn the ignition switch OFF to ON.

CAUTION:

Be sure to wait for 10 seconds after turning ignition switch OFF or ON.

2.

Push the parking brake switch.

CAUTION:

• Set the select lever in the P position.
• Depress the brake pedal.

3.

Pull the parking brake switch.

4.

Perform self-diagnosis for “EHS/PKB”.

Is DTC “U0422” detected?

YES

>> Proceed to 

PB-126, "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:0000000010833712

1.

ERFORM SELF-DIAGNOSIS (1)

With CONSULT

Perform self-diagnosis for “BCM”.

Is DTC detected?

YES

>> Check the DTC. Refer to 

BCS-89, "DTC Index"

.

NO

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1.

Turn the ignition switch OFF to ON.

CAUTION:

Be sure to wait for 10 seconds or more after turning the ignition switch OFF.

2.

Erase self-diagnosis result for “EHS/PKB”.

3.

Repeat the parking brake switch operation (pull and push) five times.

DTC

Display Item

(Trouble diagnosis content)

Malfunction detected condition

U0422

BCM
(Body control module)

When a malfunction is detected in BCM system.

U0422 BCM SIGNAL

PB-127

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

G

H

I

J

K

L

M

A

B

PB

N

O

P

4.

Perform self-diagnosis for “EHS/PKB”.

Is DTC “U0422”, “U1000” detected?

YES (“U0422”)>>Replace the electric parking brake control module. Refer to 

PB-141, "Removal and Installa-

tion"

.

YES (“U1000”)>>Proceed to 

LAN-28, "Trouble Diagnosis Flow Chart"

.

NO

>> INSPECTION END

PB-128

< DTC/CIRCUIT DIAGNOSIS >

U1000 CAN COMM CIRCUIT

U1000 CAN COMM CIRCUIT

DTC Description

INFOID:0000000010833713

DTC DETECTION LOGIC

POSSIBLE CAUSE

• CAN communication system malfunction

FAIL-SAFE

• Automatic apply and release are prohibited.
• Brake force is degraded.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Turn the ignition switch OFF to ON.

CAUTION:

Be sure to wait for 10 seconds after turning ignition switch OFF or ON.

2.

Push the parking brake switch.

CAUTION:

• Set the select lever in the P position.
• Depress the brake pedal.

3.

Pull the parking brake switch.

4.

Perform self-diagnosis for “EHS/PKB”.

Is DTC “C1000” detected?

YES

>> Proceed to 

PB-128, "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:0000000010833714

Proceed to 

LAN-28, "Trouble Diagnosis Flow Chart"

.

DTC

Display Item

(Trouble diagnosis content)

Malfunction detected condition

U1000

CAN COMM CIRCUIT
(CAN communication cir-
cuit)

BUS OFF
(Bus off)

When CAN communication signal is not continuously transmitted or re-
ceived for 2 seconds or more.

ERRATIC
(Erratic)

When no inaccurate signal is received.

U1060 VEHICLE SPEED

PB-129

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

G

H

I

J

K

L

M

A

B

PB

N

O

P

U1060 VEHICLE SPEED

DTC Description

INFOID:0000000010833715

DTC DETECTION LOGIC

POSSIBLE CAUSE

• CAN communication line
• ABS actuator and electric unit (control unit) system
• Electric parking brake control module

FAIL-SAFE

• Automatic apply and release are prohibited.
• Brake force is degraded.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Turn the ignition switch OFF to ON.

CAUTION:

Be sure to wait for 10 seconds after turning ignition switch OFF or ON.

2.

Push the parking brake switch.

CAUTION:

• Set the select lever in the P position.
• Depress the brake pedal.

3.

Pull the parking brake switch.

4.

Perform self-diagnosis for “EHS/PKB”.

Is DTC “U1060” detected?

YES

>> Proceed to 

PB-129, "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:0000000010833716

1.

ERFORM SELF-DIAGNOSIS (1)

With CONSULT

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES

>> Check the DTC. Refer to 

BRC-54, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK DATA MONITOR (1)

With CONSULT

1.

Turn the ignition switch OFF to ON.

CAUTION:

Be sure to wait for 10 seconds or more after turning the ignition switch OFF.

DTC

Display Item

(Trouble diagnosis content)

Malfunction detected condition

U1060

VEHICLE SPPED
(Vehicle speed)

When CAN communication signal with wheel speed signal from ABS actuator and 
electric unit (control unit) is not continuously received for 2 seconds or more.