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DTC C1925: VAPS SOLENOID ACTUATOR RETURN CIRCUIT FAILURE Lincoln LS I

Electronic Steering ~304 words
  1. Ensure ignition switch is in OFF position. Disconnect FEM connector C201a. Turn ignition switch to ON position. Measure voltage between ground and FEM harness connector C201a terminal No. 9 (White/Green wire). (Схема №3) If no voltage is present, go to step 3. If any voltage is present, go to next step.
  2. Turn ignition switch to OFF position. Disconnect 2-pin actuator solenoid connector C120. Turn ignition switch to ON position. Measure voltage between ground and FEM harness connector C201a terminal No. 9 (White/Green wire). If any voltage is present, repair White/Green wire. Clear DTCs. Repeat self-test. If no voltage is present, repair Brown/Green wire. See «WIRING DIAGRAMS»(ref-96949-S20012811152001041900000). Clear DTCs. Repeat self-test.
  3. Turn ignition switch to OFF position. Measure resistance between FEM harness connector C201a terminals No. 9 (White/Green wire) and No. 2 (Brown/Green wire). If resistance is 4-85 ohms, install a new actuator solenoid. See «ACTUATOR SOLENOID»(ref-96949-S25417605722001041900000) under REMOVAL & INSTALLATION. Clear DTCs. Repeat self-test. If DTC C1925 is retrieved, install new FEM. See «FRONT ELECTRONIC MODULE»(ref-96949-S00669221542001041900000) under REMOVAL & INSTALLATION. Test system for normal operation. If resistance is not 4-85 ohms, go to next step.
  4. Measure resistance between FEM harness connector C201a terminal No. 9 (White/Green wire) and actuator solenoid 2-pin harness connector C120 terminal No. 1 (White/Green wire). See «WIRING DIAGRAMS»(ref-96949-S20012811152001041900000). If resistance is greater than 5 ohms, repair circuit. Clear DTCs. Repeat self-test. If resistance is less than 5 ohms, go to next step.
  5. Measure resistance between FEM harness connector C201a terminal No. 2 (Brown/Green wire) and actuator solenoid 2-pin harness connector C120 terminal No. 2 (Brown/Green wire). If resistance is less than 5 ohms, install a new actuator solenoid. See «ACTUATOR SOLENOID»(ref-96949-S25417605722001041900000) under REMOVAL & INSTALLATION. Clear DTCs. Repeat self-test. If resistance is greater than 5 ohms, repair circuit. Clear DTCs. Repeat self-test.

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