System Description: Notes

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.

For the unified meter and A/C amp., the signal required for controlling the combination meter and triple meter are integrated in the A/C auto amp.
Unified meter and A/C amp. controls each operation for A/C auto amp. For information regarding A/C control, refer to "AIR CONDITIONER CONTROL " in "ATC" section.

Fig 1: Unified Meter & A/C AMP.
Courtesy of NISSAN MOTOR CO., U.S.A.
Unified meter and A/C amp. inputs necessary information for combination meter and triple meter from each unit by CAN communication and so on.
And unified meter and A/C amp. outputs these signals using communication line (TX, RX) between unified meter and A/C amp. and various meters.
In addition to sending output to the combination meter and triple meter containing the signals input from the various units, it also receives the signals between the combination meter and triple meter.
Other input signals are also sent to the ECM, TCM, and BCM using CAN communication.
The signals required for the trip computer display are centralized in the unified meter and A/C amp., converted into data, and sent to the triple meter.
The unified meter and A/C amp. correspond a CONSULT-II function (self-diagnostic results, CAN diagnostic support monitor, data monitor).