2001 NISSAN ALMERA ABS

HOW TO READ SELF-DIAGNOSTIC RESULTS
(MALFUNCTION CODES)
NJBR0091S031. Determine the code No. by counting the number of times the
ABS warning lamp flashes on and off.
2. When several malfunctions occur at one time, up to three code
numbers can be stored; the latest malfunction will be indicated
first.
3. The indication begins with the start code 12. After that a maxi-
mum of three code numbers appear in the order of the latest
one first. The indication then returns to the start code 12 to
repeat (the indication will stay on for five minutes at the most).
4. The malfunction code chart is given on the BR-76 page.
SBR457D
ABR256
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(MALFUNCTION CODES)
NJBR0091S041. Disconnect the check terminal from ground (ABS warning lamp
will stay lit).
2. Within 12.5 seconds, ground the check terminal 3 times. Each
terminal ground must last more than 1 second. The ABS warn-
ing lamp goes out after the erase operation has been com-
pleted.
3. Perform self-diagnosis again. Refer to BR-63. Only the start
code should appear, no malfunction codes.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
Self-diagnosis (Only Models with Data Link Connector Terminal No. 9) (Cont'd)
BR-64

CONSULT-IINJBR0092CONSULT-II APPLICATION TO ABSNJBR0092S01
ITEMSELF-DIAGNOSTIC
RESULTSDATA MONITOR ACTIVE TEST
Front right wheel sensor X X Ð
Front left wheel sensor X X Ð
Rear right wheel sensor X X Ð
Rear left wheel sensor X X Ð
Stop lamp switch Ð X Ð
Front right inlet solenoid valve X X X
Front right outlet solenoid valve X X X
Front left inlet solenoid valve X X X
Front left outlet solenoid valve X X X
Rear right inlet solenoid valve X X X
Rear right outlet solenoid valve X X X
Rear left inlet solenoid valve X X X
Rear left outlet solenoid valve X X X
Actuator solenoid valve relay X X Ð
Actuator motor relay
(ABS MOTOR is shown on the ACTIVE TEST
screen.)XXX
ABS warning lamp Ð X Ð
Battery voltage X X Ð
Control unit X Ð Ð
X: Applicable
Ð: Not applicable
ECU (ABS CONTROL UNIT) PART NUMBER MODENJBR0092S02Ignore the ECU part number displayed in the ECU PART NUMBER MODE. Refer to parts catalog to order
the ABS actuator and electric unit.
SEF378Y
CONSULT-II Inspection ProcedureNJBR0093SELF-DIAGNOSIS PROCEDURENJBR0093S011. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector.
3. Start engine.
4. Drive vehicle over 30 km/h (19 MPH) for at least one minute.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
CONSULT-II
BR-65

PBR455D
5. Stop vehicle with engine running and touch ªSTARTº on CON-
SULT-II screen.
PBR385C
6. Touch ªABSº.
PST412B
7. Touch ªSELF-DIAG RESULTSº.
+The screen shows the detected malfunction and how many
times the ignition switch has been turned since the malfunc-
tion.
8. Make the necessary repairs following the diagnostic proce-
dures.
SBR561E
9. After the malfunctions are repaired, erase the self-diagnostic
results stored in the control unit by touching ªERASEº.
10. Check ABS warning lamp for deactivation after driving vehicle
over 30 km/h (19 MPH) for at least one minute.
NOTE:
ªSELF-DIAG RESULTSº screen shows the detected malfunction
and how many times the ignition switch has been turned since the
malfunction.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
CONSULT-II Inspection Procedure (Cont'd)
BR-66

SELF-DIAGNOSTIC RESULTS MODE=NJBR0093S02
Diagnostic item Diagnostic item is detected when ...Reference
Page
FR RH SENSOR
[OPEN]*1+Circuit for front right wheel sensor is open.
(An abnormally high input voltage is entered.)BR-78
FR LH SENSOR
[OPEN]*1+Circuit for front left wheel sensor is open.
(An abnormally high input voltage is entered.)BR-78
RR RH SENSOR
[OPEN]*1+Circuit for rear right sensor is open.
(An abnormally high input voltage is entered.)BR-78
RR LH SENSOR
[OPEN]*1+Circuit for rear left sensor is open.
(An abnormally high input voltage is entered.)BR-78
FR RH SENSOR
[SHORT]*1+Circuit for front right wheel sensor is shorted.
(An abnormally low input voltage is entered.)BR-78
FR LH SENSOR
[SHORT]*1+Circuit for front left wheel sensor is shorted.
(An abnormally low input voltage is entered.)BR-78
RR RH SENSOR
[SHORT]*1+Circuit for rear right sensor is shorted.
(An abnormally low input voltage is entered.)BR-78
RR LH SENSOR
[SHORT]*1+Circuit for rear left sensor is shorted.
(An abnormally low input voltage is entered.)BR-78
ABS SENSOR
[ABNORMAL SIGNAL]+Teeth damage on sensor rotor or improper installation of wheel sensor.
(Abnormal wheel sensor signal is entered.)BR-78
FR RH IN ABS SOL
[OPEN]+Circuit for front right inlet solenoid valve is open.
(An abnormally low output voltage is entered.)BR-81
FR LH IN ABS SOL
[OPEN]+Circuit for front left inlet solenoid valve is open.
(An abnormally low output voltage is entered.)BR-81
RR RH IN ABS SOL
[OPEN]+Circuit for rear right inlet solenoid valve is open.
(An abnormally low output voltage is entered.)BR-81
RR LH IN ABS SOL
[OPEN]+Circuit for rear left inlet solenoid valve is open.
(An abnormally low output voltage is entered.)BR-81
FR RH IN ABS SOL
[SHORT]+Circuit for front right inlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)BR-81
FR LH IN ABS SOL
[SHORT]+Circuit for front left inlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)BR-81
RR RH IN ABS SOL
[SHORT]+Circuit for rear right inlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)BR-81
RR LH IN ABS SOL
[SHORT]+Circuit for rear left inlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)BR-81
FR RH OUT ABS SOL
[OPEN]+Circuit for front right outlet solenoid valve is open.
(An abnormally low output voltage is entered.)BR-81
FR LH OUT ABS SOL
[OPEN]+Circuit for front left outlet solenoid valve is open.
(An abnormally low output voltage is entered.)BR-81
RR RH OUT ABS SOL
[OPEN]+Circuit for rear right outlet solenoid valve is open.
(An abnormally low output voltage is entered.)BR-81
RR LH OUT ABS SOL
[OPEN]+Circuit for rear left outlet solenoid valve is open.
(An abnormally low output voltage is entered.)BR-81
FR RH OUT ABS SOL
[SHORT]+Circuit for front right outlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)BR-81
FR LH OUT ABS SOL
[SHORT]+Circuit for front left outlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)BR-81
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
CONSULT-II Inspection Procedure (Cont'd)
BR-67

Diagnostic item Diagnostic item is detected when ...Reference
Page
RR RH OUT ABS SOL
[SHORT]+Circuit for rear right outlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)BR-81
RR LH OUT ABS SOL
[SHORT]+Circuit for rear left outlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)BR-81
ABS ACTUATOR RELAY
[ABNORMAL]+Actuator solenoid valve relay is ON, even control unit sends off signal.
+Actuator solenoid valve relay is OFF, even control unit sends on signal.BR-81
ABS MOTOR RELAY
[ABNORMAL]+Circuit for actuator motor is open or shorted.
+Actuator motor relay is stuck.BR-84
BATTERY VOLT
[ABNORMAL]+Power source voltage supplied to ABS control unit is abnormally low. BR-86
CONTROL UNIT+Function of calculation in ABS control unit has failed. BR-88
*1: Be sure to confirm the ABS warning lamp illuminates when the ignition switch is turned ON after repairing the shorted sensor circuit,
but the lamp goes out when driving the vehicle over 30 km/h (19 MPH) for one minute in accordance with SELF-DIAGNOSIS
PROCEDURE.
PBR455D
DATA MONITOR PROCEDURENJBR0093S031. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector.
3. Turn ignition switch ON.
4. Touch ªSTARTº on CONSULT-II screen.
PBR385C
5. Touch ªABSº.
PST412B
6. Touch ªDATA MONITORº.
7. Touch ªSETTINGº on ªSELECT MONITOR ITEMº screen.
8. Touch ªLONG TIMEº on ªSET RECORDING CONDº screen.
9. Touch ªSTARTº on ªSELECT MONITOR ITEMº.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
CONSULT-II Inspection Procedure (Cont'd)
BR-68

PBR455D
ACTIVE TEST PROCEDURENJBR0093S04+When conducting Active test, vehicle must be stationary.
+When ABS warning lamp stays on, never conduct Active test.
1. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector.
3. Start engine.
4. Touch ªSTARTº on CONSULT-II screen.
PBR385C
5. Touch ªABSº.
PST412B
6. Touch ªACTIVE TESTº.
PBR976C
7. Select active test item by touching screen.
PBR934C
8. Touch ªSTARTº.
9. Carry out the active test by touching screen key.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
CONSULT-II Inspection Procedure (Cont'd)
BR-69

DATA MONITOR MODENJBR0093S05
MONITOR ITEM CONDITION SPECIFICATION
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSORDrive vehicle.
(Each wheel is rotating.)Displays computed vehicle speed from wheel sensor signal.
Almost the same speed as speedometer.
STOP LAMP SWTurn ignition switch ON and
depress brake pedal.Depress the pedal: ON
Release the pedal: OFF
FR RH IN SOL
FR RH OUT SOL
FR LH IN SOL
FR LH OUT SOL
RR IN SOL
RR OUT SOL
RL IN SOL
RL OUT SOLIgnition switch is turned ON or
engine is running.Operating conditions for each solenoid valve are indicated.
ABS is not operating: OFF
ACTUATOR RLY
Ignition switch is turned ON or
engine is running.Displays ON/OFF condition of ABS actuator relay.
When turning ignition switch ON, ABS actuator relay is oper-
ated.
MOTOR RELAYABS is not operating: OFF
ABS is operating: ON
WARNING LAMPWarning lamp is turned on: ON
Warning lamp is turned off: OFF
BATTERY VOLT Power supply voltage for control unit
ACTIVE TEST MODENJBR0093S06
TEST ITEM CONDITION JUDGEMENT
FR RH SOLENOID
FR LH SOLENOID
RR RH SOLENOID
RR LH SOLENOID
Ignition switch is turned ON.Brake fluid pressure control operation
IN SOL OUT SOL
UP (Increase): OFF OFF
KEEP (Hold): ON OFF
DOWN (Decrease): ON ON
ABS MOTORABS actuator motor
ON: Motor runs
OFF: Motor stops
NOTE:
Active test will automatically stop ten seconds after the test starts. (TEST IS STOPPED monitor shows ON.)
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
CONSULT-II Inspection Procedure (Cont'd)
BR-70

SEF233G
SEF234G
How to Perform Trouble Diagnoses for Quick
and Accurate Repair
NJBR0094INTRODUCTIONNJBR0094S01The ABS system has an electronic control unit to control major
functions. The control unit accepts input signals from sensors and
instantly drives actuator. It is essential that both kinds of signals are
proper and stable. It is also important to check for conventional
problems: such as air leaks in the booster or lines, lack of brake
fluid, or other problems with the brake system.
It is much more difficult to diagnose a problem that occurs intermit-
tently rather than continuously. Most intermittent problems are
caused by poor electric connections or faulty wiring. In this case,
careful checking of suspicious circuits may help prevent the
replacement of good parts.
A visual check only may not find the cause of the problems, so a
road test should be performed.
Before undertaking actual checks, take just a few minutes to talk
with a customer who approaches with a ABS complaint. The cus-
tomer is a very good source of information on such problems;
especially intermittent ones. Through the talks with the customer,
find out what symptoms are present and under what conditions
they occur.
Start your diagnosis by looking for ªconventionalº problems first.
This is one of the best ways to troubleshoot brake problems on an
ABS controlled vehicle. Also check related Service Bulletins for
information.
TROUBLE DIAGNOSIS Ð INTRODUCTIONABS
How to Perform Trouble Diagnoses for Quick and Accurate Repair
BR-71