Nissan Frontier D22. Manual - part 189

TROUBLE DIAGNOSIS

BRC-87

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

×:Applicable
–:Not applicable

ACTIVE TEST
Operation Procedure

CAUTION:

●

Do not perform active test while driving the vehicle.

●

Make sure to completely bleed air from brake system.

●

Active test cannot be performed when ABS warning lamp is on.

1.

Connect the CONSULT-II connector to the data link connector and start the engine.

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.

2.

Touch 

″START″ on the display.

3.

Touch 

″ABS″ and ″ACTIVE TEST″.

CAN CIRC 1
(OK/UNKWN)

–

–

–

×

CAN communication signal 
(OK/UNKWN) status is dis-
played.

CAN CIRC 2
(OK/UNKWN)

–

–

–

×

CAN CIRC 3
(OK/UNKWN)

–

–

–

×

CAN CIRC 4
(OK/UNKWN)

–

–

–

×

CAN CIRC 5
(OK/UNKWN)

–

–

–

×

CAN CIRC 6
(OK/UNKWN)

–

–

–

×

CAN CIRC 7
(OK/UNKWN)

–

–

–

×

CAN CIRC CLC
(OK/UNKWN)

–

–

–

×

TRQ MAP S/C

–

–

×

–

S/C is selected for engine 
torque map

TRQ MAP N/A

–

–

×

–

N/A is selected for engine

2WD/4WD SEL

–

–

×

–

Distinguish 2WD and 4WD

CLC VOLT
(V)

–

–

×

–

Voltage supplied to CAN-LAN 
converter is displayed

Item

(Unit)

Data monitor item selection

Remarks

ECU INPUT 

SIGNALS

MAIN

SIGNALS

SELECTION

FROM 
MENU

CAN DIAG
SUPPORT

MNTR

WBR110

BRC-88

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS

4.

Test item selection screen is displayed.

5.

Touch necessary test item.

6.

Touch 

″START″ with ″MAIN SIGNALS″ line inverted.

7.

Carry out active test by touching screen key.

Solenoid Valve

1.

To perform active test of ABS functions, select major items for
each test item. To perform active test of VDC/TCS functions,
select item menu for each test item.

2.

For ABS solenoid valve, touch “UP”, “KEEP” and “DOWN”. For
ABS solenoid valve (ACT), touch “UP,”  “ACTUATOR UP” and
“ACTUATOR KEEP”. Use screen monitor to check that solenoid
valve operates as shown in Solenoid Valve Operation Chart.
Refer to 

BRC-88, "Solenoid Valve Operation Chart"

 .

Solenoid Valve Operation Chart

SFIA0365E

LBR379

SFIA0367E

LFIA0180E

Operation

ABS solenoid valve

ABS solenoid valve (ACT)

UP

KEEP

DOWN

UP

ACTUA-
TOR UP

ACTUA-

TOR KEEP

FR RH SOL
FR RH ABS SOLE-
NOID

FR RH IN SOL

OFF

ON

ON

OFF

OFF

ON

FR RH OUT SOL

OFF

OFF

ON*

OFF

OFF

OFF

CUT VALVE 1

OFF

OFF

ON

SUCTION VALVE 1

OFF

OFF

ON

TROUBLE DIAGNOSIS

BRC-89

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

*: ON for 1 to 2 seconds after the touch, and then OFF

NOTE:

●

If active test is performed with brake pedal depressed, pedal stroke may change. This is normal.

●

“TEST IS STOPPED” is displayed approximately 10 seconds after operation starts.

●

After “TEST IS STOPPED” is displayed, to perform test again, repeat Step 6.

ABS Motor

Touch “ON” and “OFF” on the screen. Check that ABS motor relay
operates as shown in table below.

NOTE:

●

If active test is performed with brake pedal depressed, pedal
stroke may change. This is normal.

●

“TEST IS STOPPED” is displayed approximately 10 seconds
after operation starts.

FR LH SOL
FR LH ABS SOLE-
NOID

FR LH IN SOL

OFF

ON

ON

OFF

OFF

ON

FR LH OUT SOL

OFF

OFF

ON*

OFF

OFF

OFF

CUT VALVE 1

OFF

OFF

ON

SUCTION VALVE 1

OFF

OFF

ON

RR RH SOL
RR RH ABS SOLE-
NOID

RR RH IN SOL

OFF

ON

ON

OFF

OFF

ON

RR RH OUT SOL

OFF

OFF

ON*

OFF

OFF

OFF

CUT VALVE 2

OFF

OFF

ON

SUCTION VALVE 2

OFF

OFF

ON

RR LH SOL
RR LH ABS SOLE-
NOID

RR LH IN SOL

OFF

ON

ON

OFF

OFF

ON

RR LH OUT SOL

OFF

OFF

ON*

OFF

OFF

OFF

CUT VALVE 2

OFF

OFF

ON

SUCTION VALVE 2

OFF

OFF

ON

Operation

ABS solenoid valve

ABS solenoid valve (ACT)

UP

KEEP

DOWN

UP

ACTUA-
TOR UP

ACTUA-

TOR KEEP

Operation

ON

OFF

ABS actuator relay

ON

ON

ABS motor relay

ON

OFF

SFIA0593E

BRC-90

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS

For Fast and Accurate Diagnosis

EFS003I5

PRECAUTIONS FOR DIAGNOSIS

●

Before performing diagnosis, always read precautions. Refer to 

BRC-52, "PRECAUTIONS"

 .

●

If ABS actuator and electric unit (control unit), steering angle sensor, steering system parts, suspension
system parts, or tires have been replaced, or if alignment has been adjusted, be sure to adjust neutral
position of steering angle sensor before driving. Refer to 

BRC-55, "Adjustment of Steering Angle Sensor

Neutral Position"

 .

●

When replacing ABS actuator and electric unit (control unit), be sure labels on control units are the same
part number.

●

After diagnosis is finished, be sure to erase memory. Refer to 

BRC-79, "Operation Procedure"

 .

●

When checking continuity and voltage between units, be sure to check for disconnection, looseness,
bend, or collapse of connector terminals. If any non-standard condition is found, repair or replace connec-
tor terminals.

●

For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.

●

If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.

●

To use CONSULT-II to perform self-diagnosis of ABS actuator and electric unit (control unit), active tests,
or work support, first stop work, then connect CONSULT-II and select “ABS”.

●

CONSULT-II self-diagnosis results are displayed without regard to occurrence timing. In some cases later
ones (timing value is small) appear on the next screen.

●

While self-diagnosis results of CONSULT-II shows an error, if CONSULT-II active test is performed, an
engine system error may be indicated. In this case, start engine to resume the normal screen.

●

VDC/TCS/ABS system electronically controls brake operation and engine output. The following symptoms
may be caused by normal operations:

Symptom

Symptom description

Result

Motor operation noise

This is noise of motor inside VDC/TCS/ABS actuator. Slight noise may 
occur during VDC, TCS, and ABS operation.

Normal

When the vehicle speed goes over 20 km/h (12.5 mph), the motor and 
valves operating noise may be heard. It happens only once after IGN 
(ignition) is ON. This is a normal status of the system operation check.

System operation check 
noise

When the engine starts, slight “click” noise may be heard from engine 
compartment. This is normal and is part of system operation check.

Normal

VDC/TCS operation
(SLIP lamp blinking)

TCS may activate momentarily if wheel speed changes when driving 
over location where friction coefficient varies, when downshifting / 
upshifting, or when fully depressing accelerator pedal.

Normal
Cancel the VDC/TCS 
function for the 
inspection on a chas-
sis dynamometer.

For inspection of speedometer or other instruments, press 
VDC OFF SW to turn VDC/TCS function off.

When accelerator pedal is depressed on a chassis dynamometer (fixed 
front-wheel type), vehicle speed will not increase. This is not normal. It is 
result of TCS being activated by stationary front wheels. Warning lamp 
may also illuminate to indicate “sensor system error”. This is also nor-
mal, and is the result of the stationary front wheels being detected. To be 
certain, restart engine, and drive vehicle at 30 km/h or above. Check 
that warning lamp does not illuminate.

ABS operation (Longer stop-
ping distance)

On roads with low friction coefficients, such as snowy roads or gravel 
roads, vehicles with ABS may require a longer stopping distance. There-
fore, when driving on such roads, avoid overconfidence and keep speed 
sufficiently low.

Normal

Insufficient feeling of accel-
eration

Depending on road conditions, driver may feel that feeling of accelera-
tion is insufficient. This is because traction control, which controls the 
engine and brakes to achieve optimal traction, has the highest priority 
(for safety). As a result, there may be times when acceleration is slightly 
less than usual for the same accelerator pedal operation.

Normal