Infiniti I30 (A33). Manual - part 127

Self-diagnosis

NHBR0056

FUNCTION

NHBR0056S01

When a problem occurs in the ABS, the ABS warning lamp on
the instrument panel comes on. When a problem occurs in the
TCS, the TCS OFF indicator lamp and SLIP indicator lamp on
the instrument panel comes on. To actuate the self-diagnostic
results mode, ground the self-diagnostic (check) terminal
located on “Data link connector”. The location of the malfunc-
tion is indicated by the ABS warning lamp or SLIP indicator
lamp flashing.

SELF-DIAGNOSIS PROCEDURE

NHBR0056S02

Drive vehicle over 30 km/h (19 MPH) for at least one minute.

Turn ignition switch “OFF”.

SBR535E

Ground terminal “9” of “Data link connector” with a suitable
harness.

Turn ignition switch “ON” while grounding terminal “9”.
Do not depress brake pedal.
Do not start engine.

SBR655E

After 3.0 seconds, the SLIP indicator 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-105. Then make the necessary repairs fol-
lowing the diagnostic procedures.

After the malfunctions are repaired, erase the malfunction
codes stored in the control unit. Refer to BR-92.

Rerun the self-diagnostic results mode to verify that the mal-
function codes have been erased.

SBR535E

Disconnect the check terminal from the ground. The self-diag-
nostic results mode is now complete.

10. Check ABS warning lamp, TCS OFF indicator lamp and SLIP

indicator lamp for deactivation after driving vehicle over 30
km/h (19 MPH) for at least one minute.

11. After making certain that ABS warning lamp, TCS OFF indica-

tor lamp and SLIP indicator lamp does not come on, test the
ABS/TCS SELF-DIAGNOSIS in a safe area to verify that it
functions properly.

IDX

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

TCS

Self-diagnosis

BR-91

NOTE:
The indication terminates after five minutes.
However, when the ignition switch is turned from “OFF” to “ON”, the
SLIP indication starts flashing again. The TCS OFF indicator lamp
and ABS warning lamp remain lighted.

HOW TO READ SELF-DIAGNOSTIC RESULTS
(MALFUNCTION CODES)

NHBR0056S03

Determine the code No. by counting the number of times the
ABS warning lamp or SLIP indicator lamp flashes on and off.

When several malfunctions occur at one time, up to three code
numbers can be stored; the latest malfunction will be indicated
first.

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).

The malfunction code chart is given on the BR-105 page.

SBR457D

SBR631D

HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(MALFUNCTION CODES)

NHBR0056S04

Under the self-diagnostic results mode, the malfunction
memory erase mode starts when the check terminal is discon-
nected from the ground.

The self-diagnostic results (malfunction codes) can be erased
by grounding the check terminal more than three times in suc-
cession within 12.5 seconds after the erase mode starts. (Each
grounding must be longer than one second.)
The ABS warning lamp or SLIP indicator lamp stays on while
the self-diagnosis is in the erase mode, and goes out after the
erase operation has been completed.

The self-diagnosis is also completed at the same time. (Refer
to BR-91.)

After the erase operation is completed, it is necessary to rerun
the self-diagnostic mode to verify that malfunction codes no
longer appear. Only the start code (12) should be indicated
when erase operation is completed and system is functioning
normally.
NOTE:
The TCS OFF indicator lamp and ABS warning lamp remain
lighted.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

TCS

Self-diagnosis (Cont’d)

BR-92

CONSULT-II

NHBR0057

CONSULT-II APPLICATION TO TCS

NHBR0057S01

ITEM

SELF-DIAGNOSTIC

RESULTS

DATA MONITOR

ACTIVE TEST

Front right wheel sensor

—

Front left wheel sensor

—

Rear right wheel sensor

—

Rear left wheel sensor

—

ABS sensor

—

Stop lamp switch

—

Front right inlet solenoid valve

Front right outlet solenoid valve

Front left inlet solenoid valve

Front left outlet solenoid valve

Rear right inlet solenoid valve

Rear right outlet solenoid valve

Rear left inlet solenoid valve

Rear left outlet solenoid valve

Actuator solenoid valve relay

—

Actuator motor relay
(ABS MOTOR is shown on the ACTIVE TEST
screen.)

ABS warning lamp

—

Battery voltage

—

Control unit

—

Engine speed signal

—

ABS motor

—

A/T gear position signal

—

TCS OFF indicator lamp

—

SLIP indicator lamp

—

ECM

—

LAN signal

—

X: Applicable
—: Not applicable

ECU (ABS/TCS CONTROL UNIT) PART NUMBER MODE

NHBR0057S02

Ignore the ECU part number displayed in the ECU PART NUMBER MODE. Refer to parts catalog to order
the ECU.

IDX

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

TCS

CONSULT-II

BR-93

SBR535E

CONSULT-II Inspection Procedure

NHBR0058

SELF-DIAGNOSIS PROCEDURE

NHBR0058S01

Turn ignition switch OFF.

Connect CONSULT-II to Data Link Connector.

Start engine.

Drive vehicle over 30 km/h (19 MPH) for at least one minute.

PBR455D

Stop vehicle with engine running and touch “START” on CON-
SULT-II screen.

PBR385C

Touch “ABS”.

PST412B

Touch “SELF DIAGNOSIS”.

The screen shows the detected malfunction and how many
times the ignition switch has been turned since the malfunc-
tion.

Make the necessary repairs following the diagnostic proce-
dures.

SBR561E

After the malfunctions are repaired, erase the self-diagnostic
results stored in the control unit by touching “ERASE”.

10. Check ABS warning lamp, SLIP indicator lamp, TCS OFF indi-

cator lamp for deactivation after driving vehicle over 30 km/h
(19 MPH) for at least one minute.

NOTE:
“SELF-DIAG RESULTS” screen shows the detected malfunction
and how many times the ignition switch has been turned since the
malfunction.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

TCS

CONSULT-II Inspection Procedure

BR-94

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