Mark,
Try defining the SERVICE_IS var at the beginning of the file then (line 14):
], function(declare, lang, array, html, query, topic, on, aspect, keys, i18n, dojoConfig, InfoWindow,
PopupMobile, InfoTemplate, esriRequest, arcgisUtils, Extent, Point, require, jimuUtils,
LayerInfos, Message, AppStatePopup, MapUrlParamsHandler, AppStateManager, PopupManager, FilterManager) {
var instance = null,
clazz = declare(null, {
appConfig: null,
mapDivId: '',
map: null,
previousInfoWindow: null,
mobileInfoWindow: null,
isMobileInfoWindow: false,
layerInfosObj: null,
SERVICE_ID: null,