Description
If PowerStep XTreme boards have stopped responding, the controller may be one part of the diagnosis. AMP Research 19-04279-XTA is a dedicated replacement control module, not an entire electric step system.
The brand identifies this specific XTA version for compatible PowerStep setups and says it supports override switches 79105-01A and 79106-01A. Other controller generations can use different plugs or electronics, making the printed suffix an essential check.
Product specifications
| AMP manufacturer MPN | 19-04279-XTA |
|---|---|
| Component | PowerStep replacement controller |
| Controller version | XTA |
| Override switches | 79105-01A or 79106-01A compatible |
| Excluded step assemblies | 75141-01A; 75134-01A |
Fitment and ordering guidance
Exact compatibility depends on the previously installed AMP PowerStep model and vehicle-specific harness. Compare the controller label and installation diagram before replacing it.
Electronic module only: it does not include step boards, brackets or motors. Do not substitute the STA or STB controller just because the connectors look similar.
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