Finding AHC ECU plugs in Land Cruiser

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87warrior

Whiskey Tango Foxtrot
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Has anybody with a non AHC equipped Cruiser ever found the AHC ECU wiring under the dash? I would like to use the AHC relay port under the hood and locating these plugs is a necessity.

From my understanding, the wiring that feeds into the AHC ECU should be located somewhere above the skinny pedal near the OBD port.

1589997646372.png


I have fished around behind the knee bash plate doing Land Cruiser yoga with no success locating the AHC ECU wiring. I even removed the cluster, radio and the metal knee bash plate to try and find these plugs.

The plugs I have found taped to the main harness have all been thin blue or green plugs. I did find these 3 white plugs on the left side of the steering column that were haphazardly taped to the main harness but they do not match any of the LX AHC wiring diagrams I have come across, so I do not think they are for the AHC ECU. There is a chance I am viewing LX AHC EWD's for later model 100's and they are not the same as a 1999. If anybody happens to have a 98/99 LX EWD, I'd love to see the AHC section :)

1589998177988.png
 
Has anybody with a non AHC equipped Cruiser ever found the AHC ECU wiring under the dash? I would like to use the AHC relay port under the hood and locating these plugs is a necessity.

From my understanding, the wiring that feeds into the AHC ECU should be located somewhere above the skinny pedal near the OBD port.

View attachment 2313102

I have fished around behind the knee bash plate doing Land Cruiser yoga with no success locating the AHC ECU wiring. I even removed the cluster, radio and the metal knee bash plate to try and find these plugs.

The plugs I have found taped to the main harness have all been thin blue or green plugs. I did find these 3 white plugs on the left side of the steering column that were haphazardly taped to the main harness but they do not match any of the LX AHC wiring diagrams I have come across, so I do not think they are for the AHC ECU. There is a chance I am viewing LX AHC EWD's for later model 100's and they are not the same as a 1999. If anybody happens to have a 98/99 LX EWD, I'd love to see the AHC section :)

View attachment 2313106
I have a 1998 LC EWD at home... I don't remember seeing an AHC section so may be limited to the LX version.
 
I have a 1998 LC EWD at home... I don't remember seeing an AHC section so may be limited to the LX version.
Right. The AHC stuff seems to be isolated to the LX EWD. I have an EWD for my LC (paper and digital) but it is void of any AHC info. I have a few of the AHC EWD sections for LX, but I don't know what year they are for.
 
Right. The AHC stuff seems to be isolated to the LX EWD. I have an EWD for my LC (paper and digital) but it is void of any AHC info. I have a few of the AHC EWD sections for LX, but I don't know what year they are for.
Yeah as is mine...
Might be worthwhile to invest if you plan to keep the rig for a while....link
 

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