Nissan Skyline R33 - Climate Control Diagnostics

This video is part of the #R33_Series

The following guide will work for the digital climate control for any of the Nissan Skyline R32 and R33 models.

Steps:
1. Turn on the ignition
2. Enter the diagnostic mode by pressing the OFF button for five seconds within ten seconds of turning the ignition on.
3. Toggle through the various 4 modes using the red up arrow button.
Mode 1 - Test display for dead pixels.
Mode 2 - 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)best to test outside for this
26 - PBR
27 - Refrigerant temperature sensor
This should tell you if any of your sensors are faulty.
Mode 3 - Door position check. 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
Mode 4 - Actuator operation check. The mode Door Position check sends a signal to check the operation of the actuator manually.

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