Heating system Diagnostic Test for Nissan Skyline R32/R33
Heating system Diagnostic Test for Nissan Skyline R32/R33
Enter the diagnostic mode by pressing the OFF button for five seconds within ten seconds of turning the ignition on.
Sensor check
Sensor check is selected by pressing HOT switch (the red triangle) while in diagnostic mode. The microcomputer detects whether each sensor input signal is within correct parameters. The results are displayed on the screen.
If normal, a "20" is displayed.
If abnormal the failed sensor number is displayed. The sensor numbers are as follows:
20 - all is normal
21 - outside air sensor
22 - Inside air sensor
23 - Water temperature sensor
24 - Intake temperature sensor
25 - Sunload sensor (small sensor on the left hand side of the dashboard near the windscreen)
26 - PBR
27 - Refrigerant temperature sensor
This should tell you if any of your sensors are faulty.
Mode door position check
(This is probably not the cause of your problems but it is a nifty self check to play with).
While in Sensor check, depress the HOT button again. This will operate the the mode door actuator, and checks the whether the position detection switch is operating. Again the results are displayed on the display.
If normal, a "30" is displayed.
If abnormal the number of the faulty mode is displayed as follows:
30: Normal
31: VENT
32: B/L (Bi level)
34: FOOT
35: DEFROST/FOOT
36: DEFROST
Sensor recognition check
Press the HOT switch again and a "5" will be indicated in the display
section. If you press the "AMB" button (R32) or the windscreen
defroster button (R33) in this status, the display will show the
temperature sensed by each sensor. This will give you an indication
also of which (if any) are faulty.
Temperatures will be displayed in the following order (R32):
5 -> Outside air temp -> Inside air temp -> Suction temp ->
Refrigerant temp.
R33 seems to have a different selection, with three temperatures
being displayed. Obviously if any of these temps seem excessively
different from actual temperatures you have a problem!
Calibration
If you depress the fan switch during the Sensor Recognition check,
you will go to Calibration in which you can set the difference
between the indicated temperature and sensed temperature.
While in Calibration press the HOT or COLD buttons to change the
display by plus or minus 3 degrees in .5 degree increments (R32)
or 1 degree increments (R33).
Lexus IS200 Sport Navigator (Now being stripped again) :blink:
Now Don't Forget The REP!!!
The diag test is
Enter the diagnostic mode by pressing the OFF button for five seconds within ten seconds of turning the ignition on.
Sensor check
Sensor check is selected by pressing HOT switch (the red triangle) while in diagnostic mode. The microcomputer detects whether each sensor input signal is within correct parameters. The results are displayed on the screen.
If normal, a "20" is displayed.
If abnormal the failed sensor number is displayed. The sensor numbers are as follows:
20 - all is normal
21 - outside air sensor
22 - Inside air sensor
23 - Water temperature sensor
24 - Intake temperature sensor
25 - Sunload sensor (small sensor on the left hand side of the dashboard near the windscreen)
26 - PBR
27 - Refrigerant temperature sensor
This should tell you if any of your sensors are faulty.
Mode door position check
(This is probably not the cause of your problems but it is a nifty self check to play with).
While in Sensor check, depress the HOT button again. This will operate the the mode door actuator, and checks the whether the position detection switch is operating. Again the results are displayed on the display.
If normal, a "30" is displayed.
If abnormal the number of the faulty mode is displayed as follows:
30: Normal
31: VENT
32: B/L (Bi level)
34: FOOT
35: DEFROST/FOOT
36: DEFROST
Sensor recognition check
Press the HOT switch again and a "5" will be indicated in the display
section. If you press the "AMB" button (R32) or the windscreen
defroster button (R33) in this status, the display will show the
temperature sensed by each sensor. This will give you an indication
also of which (if any) are faulty.
Temperatures will be displayed in the following order (R32):
5 -> Outside air temp -> Inside air temp -> Suction temp ->
Refrigerant temp.
R33 seems to have a different selection, with three temperatures
being displayed. Obviously if any of these temps seem excessively
different from actual temperatures you have a problem!
Calibration
If you depress the fan switch during the Sensor Recognition check,
you will go to Calibration in which you can set the difference
between the indicated temperature and sensed temperature.
While in Calibration press the HOT or COLD buttons to change the
display by plus or minus 3 degrees in .5 degree increments (R32)
or 1 degree increments (R33).
Lexus IS200 Sport Navigator (Now being stripped again) :blink:
Now Don't Forget The REP!!!
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