Page 304 of 3051
5 RECHECK BRAKE FLUID LEVEL
Check brake fluid level in reservoir tank again.
NBR376
Is brake fluid filled between MAX and MIN lines on reservoir tank and/or has brake fluid been contaminated?
Ye s©GO TO 6.
No©Fill up brake fluid.
6 CHECK WARNING LAMP ACTIVATION
Check warning lamp activation.
SBR759E
Does warning lamp turn on when ignition switch is turned“ON”?
Ye s©GO TO 7.
No©Check fuse, warning lamp bulb and warning lamp circuit.
7 CHECK WARNING LAMP DEACTIVATION
Check warning lamp for deactivation after engine is started.
Does warning lamp turn off when engine is started?
Ye s©GO TO 8.
No©Go to Self-diagnosis. Refer to BR-56, 58.
8 DRIVE VEHICLE
Drive vehicle at speeds over 30 km/h (19 MPH) for at least one minute.
Does warning lamp remain off after vehicle has been driven at 30 km/h (19 MPH) for at least one minute?
Ye s©END
No©Go to Self-diagnosis. Refer to BR-56, 58.
TROUBLE DIAGNOSIS—BASIC INSPECTIONABS
Preliminary Check (Cont’d)
BR-67
Page 306 of 3051

Malfunction Code/Symptom ChartNLBR0097MODELS WITH SELF-DIAGNOSIS FUNCTION (DATA LINK CONNECTOR TERMINAL NO. 9)NLBR0097S01
Code No. (No. of LED flashes) Malfunctioning part Reference page
12 Self-diagnosis could not detect any malfunctions.—
18 Sensor rotor BR-71
21 Front right sensor (open-circuit) BR-71
22 Front right sensor (short-circuit) BR-71
25 Front left sensor (open-circuit) BR-71
26 Front left sensor (short-circuit) BR-71
31 Rear right sensor (open-circuit) BR-71
32 Rear right sensor (short-circuit) BR-71
35 Rear left sensor (open-circuit) BR-71
36 Rear left sensor (short-circuit) BR-71
41 Actuator front right outlet solenoid valve BR-74
42 Actuator front right inlet solenoid valve BR-74
45 Actuator front left outlet solenoid valve BR-74
46 Actuator front left inlet solenoid valve BR-74
51 Actuator rear right outlet solenoid valve BR-74
52 Actuator rear right inlet solenoid valve BR-74
55 Actuator rear left outlet solenoid valve BR-74
56 Actuator rear left inlet solenoid valve BR-74
57* Power supply (Low voltage) BR-79
61 Actuator motor or motor relay BR-77
63 Solenoid valve relay BR-74
71 Control unit BR-81
ABS warning lamp stays on when
ignition switch is turned on.Control unit power supply circuit
Warning lamp bulb circuit
Control unit or control unit connector
Solenoid valve relay stuck
Power supply for solenoid valve relay coilBR-88
ABS warning lamp stays on, during
self-diagnosis.Control unit—
ABS warning lamp does not come on
when ignition switch is turned on.Fuse, warning lamp bulb or warning lamp circuit
Control unitBR-86
ABS warning lamp does not come on
during self-diagnosis.Control unit—
Pedal vibration and noise—BR-85
Long stopping distance—BR-83
Unexpected pedal action—BR-82
ABS does not work.—BR-84
ABS works frequently.—BR-82
*: Under voltage that is too low, the control unit disable the ABS. It does not set the ABS in fail-safe condition. Instead, the ABS becomes
TROUBLE DIAGNOSIS—GENERAL DESCRIPTIONABS
Malfunction Code/Symptom Chart
BR-69
Page 307 of 3051
a conventional brake system. After the power supply has resumed, the warning lamp goes off, making it possible for the ABS to be re-
engaged.
TROUBLE DIAGNOSIS—GENERAL DESCRIPTIONABS
Malfunction Code/Symptom Chart (Cont’d)
BR-70
Page 308 of 3051
Wheel Sensor or RotorNLBR0098DIAGNOSTIC PROCEDURENLBR0098S01(Malfunction code No. 21, 22, 25, 26, 31, 32, 35, 36 or 18 for
models with self-diagnosis function)
NOTE:
Wheel position should be identified by code No. except code No.
18 (sensor rotor).
1 INSPECTION START
Wheel sensor inspection
NBR377
©GO TO 2.
2 CHECK CONNECTOR
1. Disconnect connectors from control unit and wheel sensor of malfunction code No. Check terminals for damage or
loose connections. Then reconnect connectors.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Ye s©GO TO 3.
No©INSPECTION END
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMSABS
Wheel Sensor or Rotor
BR-71
Page 312 of 3051

4 CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit connector. Check terminals for damage or loose connection. Then reconnect
connector.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Ye s©GO TO 5.
No©INSPECTION END
5 CHECK GROUND CIRCUIT
Refer to ABS ACTUATOR AND ELECTRIC UNIT in Ground Circuit Check, BR-68.
Is ground circuit OK?
Ye s©GO TO 6.
No©Repair harness and connectors.
6 CHECK SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Disconnect ABS actuator and electric unit connector.
2. Check voltage between ABS actuator and electric unit connector terminal 18 and ground.
NBR384
Does battery voltage exist?
Ye s©Replace ABS actuator and electric unit.
No©Check the following.
+Harness connector E1
+Harness for open or short between ABS actuator and electric unit and fusible link
If NG, repair harness or connectors.
7 REPLACE FUSIBLE LINK
Replace fusible link.
Does the fusible link blow out when ignition switch is turned“ON”?
Ye s©GO TO 8.
No©INSPECTION END
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMSABS
ABS Actuator Solenoid Valve or Solenoid Valve Relay (Cont’d)
BR-75
Page 314 of 3051
Motor Relay or Motor=NLBR0101DIAGNOSTIC PROCEDURENLBR0101S01(Malfunction code No. 61 for models with self-diagnosis func-
tion)
1 INSPECTION START
ABS motor relay inspection
NBR425
©GO TO 2.
2 CHECK MOTOR POWER SUPPLY CIRCUIT
Check 40A fusible link (ABS MTR) for ABS motor relay. For fusible link layout, refer to POWER SUPPLY ROUTING in EL
section.
Is fusible link OK?
Ye s©GO TO 3.
No©GO TO 6.
3 CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit connector. Check terminals for damage or loose connection. Then reconnect
connectors.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Ye s©GO TO 4.
No©INSPECTION END
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMSABS
Motor Relay or Motor
BR-77
Page 317 of 3051

2 CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit connector. Check terminals for damage or loose connections. Then recon-
nect connector.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Ye s©GO TO 3.
No©INSPECTION END
3 CHECK ABS ACTUATOR AND ELECTRIC UNIT POWER SUPPLY CIRCUIT
1. Disconnect ABS actuator and electric unit connector.
2. Check voltage between ABS actuator and electric unit connector terminal 15 and ground.
SBR058EH
Does battery voltage exist when ignition switch is turned ON?
Ye s©GO TO 4.
No©GO TO 5.
4 CHECK ABS ACTUATOR AND ELECTRIC UNIT GROUND
Refer to ABS ACTUATOR AND ELECTRIC UNIT GROUND in Ground Circuit Check, BR-68.
Is ground circuit OK?
OK©Check ABS actuator and electric unit pin terminals for damage or the connection of ABS
actuator and electric unit harness connector. Reconnect ABS actuator and electric unit
harness connector. Then retest.
NG©Check the following.
+Harness connector E1
+Harness for open or short between ABS actuator and electric unit and ground
If NG, repair harness or connectors.
5 CHECK FUSE
Check 10A fuse 31 (Engine control) for control unit. Refer to POWER SUPPLY ROUTING in EL section.
Is fuse OK?
Ye s©GO TO 6.
No©Replace fuse.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMSABS
Low Voltage (Cont’d)
BR-80
Page 318 of 3051

6 CHECK ABS ACTUATOR AND ELECTRIC UNIT POWER SUPPLY CIRCUIT
Check continuity between battery and ABS actuator and electric unit connector terminal 15.
Does continuity exist?
Ye s©Check battery. Refer to BATTERY in EL section.
No©Check the following.
+Harness connector E1
+Harness for open or short between ABS actuator and electric unit and fuse
If NG, repair harness or connectors.
Control UnitNLBR0103DIAGNOSTIC PROCEDURENLBR0103S01(Malfunction code No. 71 for models with self-diagnosis func-
tion)
1 INSPECTION START
ABS actuator and electric unit power supply and ground circuit inspection
SBR626E
©GO TO 2.
2 CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit connector.
Check terminals for damage or loose connections and replace. Then reconnect connector.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Ye s©GO TO 3.
No©INSPECTION END
3 CHECK ABS ACTUATOR AND ELECTRIC UNIT POWER SUPPLY CIRCUIT
Check voltage. Refer to“3. CHECK ABS ACTUATOR AND ELECTRIC UNIT POWER SUPPLY CIRCUIT”in“Low Voltage”,
BR-79.
Does battery voltage exist when ignition switch is turned ON?
Ye s©GO TO 4.
No©Repair.
4 CHECK WARNING LAMP INDICATION
Does warning lamp indicate code No. 71 again?
Ye s©Replace ABS actuator and electric unit.
No©Inspect the system according to the code No.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMSABS
Low Voltage (Cont’d)
BR-81