Telematics Control Unit (TCU): Difference between revisions

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The TCU is located behind the glove box in both LHD and RHD models of all generations. Access is achieved by removing the glove box.
The TCU is located behind the glove box in both LHD and RHD models of all generations. Access is achieved by removing the glove box.
== Connections ==
{| class="wikitable"
|+
!Connector Number
!Physical Description
!Purpose
|-
|M67
|TH40FB-NH (40-pin connector)
|Power, Microphone, CANBUS
|-
|M173
|USCAR30-MD-M (USB)
|USB connection to head unit
|-
|M174
|FAKRA CODE H 4003 (Pink)
|GSM antenna
|-
|M175
|3FA1ANCSJ-C02W0 (Blue)
|GPS antenna
|}

Revision as of 10:15, 28 March 2025

Introduction

The Telematics Control Unit (TCU) provides connectivity to the Nissan Leaf. It is a 2G, 3G, 4G or 5G modem, depending on the year and region, with additional functionality.

4G TCU from a 2nd-generation Nissan Leaf

Location and access

The TCU is located behind the glove box in both LHD and RHD models of all generations. Access is achieved by removing the glove box.

Connections

Connector Number Physical Description Purpose
M67 TH40FB-NH (40-pin connector) Power, Microphone, CANBUS
M173 USCAR30-MD-M (USB) USB connection to head unit
M174 FAKRA CODE H 4003 (Pink) GSM antenna
M175 3FA1ANCSJ-C02W0 (Blue) GPS antenna