13-11-2-2 Anti-Theft Alarm System 13-1 1-22 ,r ._ . . N x ., . I . . , . DIAGNOSIS AND TESTING (Continued) , DIAGNOSTICS FOR DOOR DlSARM, IGNITION KEYLOCK CYLINDER, HOOD SWITCH INPUTS 4 TESTIM .- . . . 1 . - . II, .. -.' . I . I I, n. II .II".I I} .. a . I .. __ .. l -._. III I: I. LII. _ ~ .1" __ I I .. .' urn."- ..3- m I. I I _..' '2 .I. ".- w- I , I. m. In .' . L; _ ... I .. 1" .. I. . ._ L. ..':...,~m.~.';gfw.--;" ::. .. NJ} .. - .. .. -2. _ . . I... . .. . .. . .111: the door disarm or hood switch. . No . I " ' y Ignition keylock cylinder 0' Rotate ignition key to RUN. ' sensor in?)Ut Sh5lted- G0 E323 : Observe anti- theft alarm indicator light. to K1- ' I Is the light off? II} M2 DOOR DISARM, HOOD SWITCH OPERATION f o Activate power door UNLOCK switch five times in 10 Flashes one time V Door disarm and hood e seconds. switch inputs not shorted. I 0 Observe anti- theft alarm indicator light, Count ' ~ * .I ' . . j _ flashes (repeats every 10 seconds). Flashes two tImes > . Egrzgasasrgwg doOr 3% . ' . - . . 3 NOTE: Diagnostic mode will automatically cancel 5'33" SW'tChGS G'TCU't 9.321 after two minutes or rotate key frOm RUN to OFF to '2_5 (DG/ P)'EC"."9 or I cancel. CIrCUIt23 (T/ LG) I , .. ~ F-Series/ Bronco. Flashes three ' ' -- V HoOd'switch shorted. times - SERVICE hood switch or if ' Circuit 486 (BR / W). I Flashes fourtimes V Both inputs shorted, ~ SERVICE door disarm I switches or Circuit 25 (DG/ P) or Circuit 23 (T/ LG) and SERVICE hood switch or Circuit .. I 486 (BR / W); ' . Component Tests Hood Switch, Econoline Door Disarm Switch , . DisConnectbanti-theft Control modgle aIIIII measure the M szIeII IesIsIsIIee IsIne Rotunda DIeIIeI iifiiemfiviig$38do'asnenetissii Volt-Ohmmeter 007 0000.1 or equwalent W'th key , , closed. The resistance should be leSs than 200 ohms removed from the door lock. The reSIstance should be 'when the hood IS unlatch ed or open If not service more than 25,0000th. If not, refer to Test B, Circuit 486 57 or replace the hood switch I Verification of Unactivated Alarm Disarming . _ ' . R f I ' reCOnnected, some abnormal drive symptoms may ; I epedat test or un ocked position for passengers and . occur while the powertrain control module . rear oor (PCM)(12A650) relearns its adaptive strategy. The ignition Key LOck Cylinder Sensor vehicle may need to be driven 10 miles or more to Disconnect anti-theft control module and measure the relearn the strategy. resistance between pin 10 and pin 26 at the wiring 1- DISCOHDGCC battery ground cable (14301). I harness connectors. Resistance should be between - 2_ RemoveLH quarter Irim panel (3101 2)_ Refer to 1 I ' 145 and17-5 ohms. 'f not, replace the IgnItIon key lock Section ~01-05A for removal and installatiOn. ; ' . I cylinder sensor or service Circuit 936, 397 or 57 , _ . . I I f f I (Econoline). On F-Series and Bronco, service Circuits 3' DIsconnect thte W'r'"9 harness e ectrIca 1 .- , 936 397 'or 570 ~ connectors to anti-theft alarm Control. (Anti-theft . . ' -. . , alarm control can be identified by a tan color). I . 4. Remove two screws securing anti-theft alarm :5 ' i I -' scapabIlIty to identify a shorted- to- -ground-conditiOn for TEST STEP RESULT _ > ACTION To TAKE 9' . IGNITION LOCK ANTI- THEFT SWITCH ' . . NOTE: This diagnostic mode quickly provides the Yes , , . V lgnitiOr'I lock anti-theft 7 "9 switch OK. GO to M2. Sequence. Measure the switch resistance with the key rotated 45 degrees from center of travel in the unlock direction in the drivers door. The resistance should be less than '200ohms, and'should remain less than 200 ohms ,when the key is fully rotated to the end of travel in the unlock direction. If nOt, refer to Test B, Verification of Unactivated Alarm Disarming Sequence. REMOVAL AND INSTALLATION ' Control Module, Econoline Removal and Installation NOTE: When the battery' Is disconnected and control. For installation, follow removal procedures In reverse order. . 1994 Econoline/F150, F-250, F-350/Bronco/F-Super Duty Body/Chassis Aug -5