Infiniti Q45 (FY33). Manual — part 85
TBR011M
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
ST
RS
BT
HA
EL
IDX
TROUBLE DIAGNOSES
Wiring Diagram — TCS — (Cont’d)
BR-57
TBR012M
TROUBLE DIAGNOSES
Wiring Diagram — TCS — (Cont’d)
BR-58
Self-diagnosis for ABS/TCS Control Unit
FUNCTION
I
When a problem occurs in the ABS, the SLIP indicator on the
instrument panel comes on. To start the self-diagnostic results
mode, ground the self-diagnostic (check) terminal located on
“Data Link Connector”. The location of the malfunction is indi-
cated by the SLIP indicator flashing.
SELF-DIAGNOSIS PROCEDURE
SBR647E
SBR629D
Drive vehicle over 30 km/h (19 MPH) for
at least one minute.
Turn ignition switch “OFF”.
Ground terminal “9” of “DATA LINK CON-
NECTOR” with a suitable harness.
Turn ignition switch “ON” while grounding
terminal “9”.
Do not depress brake pedal.
After 3.0 seconds, the SLIP indicator
starts flashing to indicate the malfunction
code No. (See NOTE.)
Verify the location of the malfunction with
the malfunction code chart. Refer to
BR-60. Then make the necessary repairs
following the diagnostic procedures.
After the malfunctions are repaired, erase
the malfunction codes stored in the con-
trol unit. Refer to BR-60.
Rerun the self-diagnostic results mode to
verify that the malfunction codes have
been erased.
Disconnect the check terminal from the
ground. The self-diagnostic results mode
is now complete.
NOTE: The indication terminates
after five minutes.
However, when the ignition
switch is turned from
“OFF” to “ON”, the indica-
tion starts flashing again.
The TCS OFF indicator and
ABS warning lamp remain
lighted.
q
A
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
ST
RS
BT
HA
EL
IDX
TROUBLE DIAGNOSES
H
H
H
H
H
H
H
H
H
BR-59
q
A
Check SLIP indicator, TCS OFF indicator
and ABS warning lamp for deactivation
after driving vehicle over 30 km/h (19
MPH) for at least one minute.
After making certain that SLIP indicator,
TCS OFF indicator and ABS warning
lamp do not come on, test the ABS in a
safe area to verify that it functions prop-
erly.
HOW TO READ SELF-DIAGNOSTIC RESULTS (Malfunction codes)
I
Determine the code No. by counting the number of times the SLIP indicator flashes on and off.
I
When several malfunctions occur at one time, up to three code numbers can be stored; the latest mal-
function will be indicated first.
I
The 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 indication will
stay on for five minutes at the most).
I
The malfunction code chart is given on the next page.
SBR457DA
SBR631D
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(Malfunction codes)
a.
Under the self-diagnostic results mode, the malfunction
memory erase mode starts when the check terminal is discon-
nected from the ground.
b.
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 SLIP indicator stays on while the self-diagnosis is in the
erase mode, and goes out after the erase operation has been
completed. (See NOTE.)
c.
The self-diagnosis is also completed at the same time. (Refer
to BR-59.)
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 and ABS warning lamp remain
lighted.
TROUBLE DIAGNOSES
Self-diagnosis for ABS/TCS Control Unit
(Cont’d)
H
H
BR-60
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