06-093-36 Brake, AMI-LOCK, 4-Wheel 06-093-35 DIAGNOSIS AND TESTING (Continued) I PINPOINT TEST E: FRONT RIGHT OUTLET SOLENOID VALVE CONCERN DIAGNOSIS (CODE 25) Test Step Result F Action to Take E 1 SERVICE CODE 25: CHECK VALVE COIL, CIRCUIT 498 (PK) AND THE ANTI-LOCK BRAKE ELECTRONIC CONTROL MODULE I e Key off. Yes V GO to E5. H 0 Install Rotunda Breakout Box 014-00322 or equivalent and Rotunda Breakout Box Adapter with No > GO to E2 Overlay 007-00103 or equivalent. 0 Verify terminals at Pins 17 and 15 are clean and secure in the connector of the anti-lock electronic control module. 0 Measure resistance between Pins 17 and 15. o Is reading between 3 and 6 ohms? E2 CHECK VALVE COIL 0 Disconnect 13-pin anti-lock hydraulic control unit Yes > REMOVE main relay from trailer connector. relay box. SERVICE open or short 0 Verify terminals on both halves of the anti-lock to ground in Circuit 498 (PK) hydraulic control unit 8-pin connector are clean and between anti-lock hydraulic secure. control unit harness connector and 0 Measure resistance between Pins 1 and 8 and Pins anti-lock brake electronic control 4 and 8 on the valve block. module connector. INSTALL main 0 Are both readings between 3 and 6 ohms? relay in trailer relay box. GO to E4. No > REPLACE antHock hydraulic control unit. GO to E4. E3 CHECK IF ALL STEPS HAVE BEEN COMPLETED CAUTION: II the followin is not complete, chances Yes V REPLACE anti-lock brake are that replacement of thi or any other system electronic control module. GO to component without specific direction will not, in E4. most circumstances resolve the concern and will - - consequently result In customer dissatisfaction No } GO to last d'aQWSIIC SIep , . . ' completed and CONTINUE. 0 Make sure a valId dIagnostIc trouble code has been obtained, all prior diagnostic steps have been completed, and the affected wiring integrity has ; been verified. i 0 Have all prior diagnostic steps been completed as described above? E4 T VERIFY CONDITION RESOLVED 0 Clear all codes. Yes > GO to E3. If antilock brake 0 Key off. electronic control module has D Key on. been replaced, GO to E6. 0 Retrieve code. - - . . . NO > GO to pInpOInt test for ' Was "9'"al d obtaIned? corresponding code. If Code 16 is obtained, GO to Pinpoint Test X. E5 VERIFY INTEGRITY OF VEHICLE WIRING NOTE: It the above steps have been completed, the Yes P GO to E4 for system OK most likely cause ofthe concern is wiring related. verification. O Reterto Pinpoint Test W (Intermittent Diagnosis) No > Most likely concern was in and perform for all affected circuits as shown on the anti-lock hydraulic control unit. mini-schematic at the beginning of this pinpoint test. REPLACE anti-lock hydraulic 0 IS resolution achieved? control unit. so m 54. 1996 F-150, F-250, F-350. Bronco, F-SuperDuty Body, Chassis July 1'1