Page 185 of 2267
MODELS WITHOUT SELF-DIAGNOSIS FUNCTION
YBR229
TROUBLE DIAGNOSES
Wiring Diagram Ð ABS Ð (Cont'd)
BR-63
Page 186 of 2267
YBR230
TROUBLE DIAGNOSES
Wiring Diagram Ð ABS Ð (Cont'd)
BR-64
Page 187 of 2267
YBR231
TROUBLE DIAGNOSES
Wiring Diagram Ð ABS Ð (Cont'd)
BR-65
Page 188 of 2267
YBR232
TROUBLE DIAGNOSES
Wiring Diagram Ð ABS Ð (Cont'd)
BR-66
Page 189 of 2267

Self-diagnosis (Only models with data link
connector terminal No. 8)
FUNCTION
lWhen a problem occurs in the ABS, the warning lamp on the
instrument panel comes on. To start the self-diagnostic
results mode, ground the self-diagnostic (check) terminal
located on ªData Link Connector for CONSULT-IIº. The loca-
tion of the malfunction is indicated by the warning lamp flash-
ing.
SELF-DIAGNOSIS PROCEDURE
Drive vehicle over 30 km/h (19 mph) for at
least one minute.
Turn ignition switch to the ªLOCKº position.
Ground terminal ª8º of ªDATA LINK CON-
NECTOR for CONSULT-IIº with a suitable
harness.
Turn ignition switch to ªONº position while
grounding terminal ª8º.
Do not depress brake pedal.
After 3.0 seconds, the warning lamp starts
flashing to indicate the malfunction code
No. (See NOTE.)
Verify the location of the malfunction with
the malfunction code chart. Refer to BR-69.
Then make the necessary repairs following
the diagnostic procedures.
After the malfunctions are repaired, erase
the malfunction codes stored in the control
unit. Refer to BR-68.
Rerun the self-diagnostic results mode to
verify that the malfunction codes have been
erased.
NOTE: The indication ter-
minates after five
minutes.
However, when the
ignition switch is
turned from off to
on, the indication
starts flashing
again. Disconnect the check terminal from the
ground. The self-diagnostic results mode is
now complete.
pA
NBR295
.DATA link connector for
CONSULT-II
(Ground terminal 8 with
a suitable harness.)
NBR284 ABS warning light
NBR305
.DATA link connector
for CONSULT-II
(Disconnect the har-
ness)
H
H
H
H
H
H
H
H
H
TROUBLE DIAGNOSES
BR-67
Page 190 of 2267

pA
Check warning lamp for deactivation after
driving vehicle over 30 km/h (19 mph) for
at least one minute.
After making certain that warning lamp
does not come on, test the ABS in a safe
area to verify that it functions properly.
HOW TO READ SELF-DIAGNOSTIC RESULTS (Malfunction codes)
lîîîDetermine the code No. by counting the number of times the warning lamp flashes on and off.
lWhen several malfunctions occur at one time, up to three code numbers can be stored; the latest mal-
function will be indicated first.
lThe indication begins with the start code 12. After that a maximum 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 indica-
tion will stay on for five minutes at the most).
lThe malfunction code chart is given on the next page.
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(Malfunction codes)
1. 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 warning lamp goes out after the erase operation has
been completed.
3. Perform self-diagnosis again. Refer to BR-67. Only the start-
code should appear, no malfunction codes.
SBR457C Example: Code No. 32 REAR SENSOR SHORT-CIRCUIT
Warning
lampON
OFF
ON
OFF IGNStart code: 12
Tens digits Units digits
Unit: Second CODE No. 32
Tens digits Units digits
3.0 0.6 0.9 0.3 0.3
0.33.3 0.6 0.6 0.6 0.6 0.6 0.9 0.3
0.3 0.3
ABR256 Self-diagnosis completed
ABS warning lamp
ON
OFF
Check terminalOpen
(disconnect)
Ground
More than 1 sec
12.5 sec
Malfunction code
memory erased
H
H
TROUBLE DIAGNOSES
Self-diagnosis (Only models with data link
connector terminal No. 8) (Cont'd)
BR-68
Page 191 of 2267
CONSULT-II
CONSULT-II APPLICATION TO ABS
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 left inlet solenoid valve X X X
Rear right outlet 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 Data Monitor screen.)XXX
ABS warning lamp Ð X Ð
Battery voltage X X Ð
Control unit X Ð Ð
X: Applicable
Ð: Not applicable
ECU part number mode
Ignore the ECU part number displayed in the ECU PART NUMBER MODE. Refer to parts catalog to order
the ECU.
Trouble Diagnosis Ð General Description
BR-69
Page 192 of 2267

CONSULT-II Inspection Procedure
SELF-DIAGNOSIS PROCEDURE
1) Turn ignition switch to the ªLOCKº
position.
2) Connect CONSULT-II to Data Link
Connector.
1) Start engine.
2) Drive vehicle over 30 km/h (19 mph)
for at least one minute.
1) Stop vehicle with engine run-
ning and touch ªSTARTº on
CONSULT-II screen.
2) Touch ªABSº.
3) Touch ªSELF-DIAG RESULTSº.
lThe screen shows the detected
malfunction and how many times
the ignition switch has been
turned since the malfunction.
MALFUNCTION REPAIR
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Make the necessary repairs following
the diagnostic procedures.
After repairing the malfunctions, erase
the self-diagnostic results stored in the
control unit by touching ªERASEº.
Check warning lamp for deactivation
after driving vehicle over 30 km/h (19
mph) for at least one minute.
End
Note: ªSELF-DIAG RESULTSº screen shows the detected malfunction
and the times of ignition switch on and off after it occurred.
.NEF125A
Fuses
Data link connector
C2NCS01
C2SSE01
.CVT
C2SDM01
C2SDR01
H
H
H
H
H
H
Trouble Diagnosis Ð General Description
BR-70