Hi Sas477,
If you are going to check your wiring harness connections.
I tracked down some 2018+ wiring diagrams and the ECO Mode switch Connector wiring goes to the Shift Position Indicator Connector G303 and from there to the Engine/Trans ECU and Airconditioning Amplifier.
On the G303 Connector the following pin are used for the ECO Mode Switch:
Gnd - Pin 18 (White/Blk) connects to Gnd Junction G277 Pin 9
ECO - Pin 14 (Pink) connects to G24 Pin 18 (EOS) on the Aircon Amp
Normal - Pin 13 (Red) connects to G184 Pin 8 (SPCN) on ECU
Sport - Pin 15 (Blue) connects to G184 Pin 12 (PWMS) on ECU
ECO/Normal/Sport pins all should have voltage on them
Gnd should be short circuit to the chassis earth.
If it is the ground that's missing there is should be additional Gnds on Pin 12 & 16 (White/Blk).
Let us know if you find anything out.
If you are going to check your wiring harness connections.
I tracked down some 2018+ wiring diagrams and the ECO Mode switch Connector wiring goes to the Shift Position Indicator Connector G303 and from there to the Engine/Trans ECU and Airconditioning Amplifier.
On the G303 Connector the following pin are used for the ECO Mode Switch:
Gnd - Pin 18 (White/Blk) connects to Gnd Junction G277 Pin 9
ECO - Pin 14 (Pink) connects to G24 Pin 18 (EOS) on the Aircon Amp
Normal - Pin 13 (Red) connects to G184 Pin 8 (SPCN) on ECU
Sport - Pin 15 (Blue) connects to G184 Pin 12 (PWMS) on ECU
ECO/Normal/Sport pins all should have voltage on them
Gnd should be short circuit to the chassis earth.
If it is the ground that's missing there is should be additional Gnds on Pin 12 & 16 (White/Blk).
Let us know if you find anything out.
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