tire pressure reset INFINITI QX56 2011 Factory Service Manual

AV-34
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
The steering angle output value detected with the gyroscope is
adjusted.
SPEED CALIBRATION
During normal driving, distance error caused by tire wear and tire
pressure change is automatically adjusted for by the automatic dis-
tance correction function. This function, on the other hand, is for
immediate adjustment, in cases such as driving with tire chain fitted
on tires.
Error History
The self-diagnosis results are judged depending on whether any error occurs from when “Self-diagnosis” is
selected until the self-diagnosis results are displayed.
However, the diagnosis results are judged normal if an error has occurred before the ignition switch is turned
ON and then no error has occurred until the self-diagnosis start. Check the “Error Record” to detect any error
that may have occurred before the self-di agnosis start because of this situation.
The error record displays the time and place of the most recent occurrence of that error. However, take note of
the following points.
 If there is a malfunction with the GPS antenna circuit board in the AV control unit, the correct date and time
of occurrence may not be able to be displayed.
 Place of the error occurrence is represented by the posit ion of the current location mark at the time an error
occurred. If current location mark has deviated from t he correct position, then the place of the error occur-
rence cannot be located correctly.
 The frequency of occurrence is displayed in a count up manner. The actual count up method differs depend- ing on the error item.
Count up method A
 The counter resets to 0 if an error occurs when igniti on switch is turned ON. The counter increases by 1 if
the condition is normal at a next ignition ON cycle.
 The counter upper limit is 39. Any counts exceeding 39 are ignored.“ The counter can be reset (no error
record display) with the “Delete log” switch or CONSULT-III.
Count up method B
 The counter increases by 1 if an error occurs when i gnition switch is ON. The counter will not decrease even
if the condition is normal at the next ignition ON cycle.
 The counter upper limit is 50. Any counts exceeding 50 are ignored. “ The counter can be reset (no error
record display) with the “Delete log” switch or CONSULT-III.
JSNIA2179ZZ
JSNIA2180ZZ
Display type of occur-
rence frequency Error history display item
Count up method A CAN communication line, control unit (CAN), AV communication line, control unit (AV)
Count up method B Other than the above
Revision: 2010 May2011 QX56