System Description: Notes

WARNING: This page is about a different car, the 2004 Nissan Maxima. 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 line (CAN H, CAN L and fuel level sensor) required for controlling the combination meter are integrated in the A/C auto amp.
In addition to providing input to the A/C auto amp. signals required for combination meter operation are received from various components - either directly, or via CAN communication. These signals are sent to the combination meter using the TX and RX communication lines between the combination meter and unified meter and A/C amp. For information regarding A/C control, refer to AIR CONDITIONER CONTROL .
The signals required for the Distance To Empty (DTE) display are centralized in the unified meter and A/C amp. converted into data, and sent to the display control unit using CAN communication.
Other input signals are also sent to the ECM, TCM, display control unit and BCM using CAN communication.
CONSULT-II functions (self-diagnostic results and data monitor) are used to identify errors in the communication lines connected to the unified meter and A/C amp. and to monitor the status of signals received by the combination meter from the unified meter and A/C amp.