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Left Front Turn Signal Output Open

NOTE: After making any repairs, perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  1. Turn ignition on. Using scan tool, clear all Body Control Module (BCM) DTCs. Activate left turn signals. Recheck for DTCs. If LEFT FRONT TURN SIGNAL OUTPUT OPEN resets, go to next step. If LEFT FRONT TURN SIGNAL OUTPUT OPEN does not reset, conditions necessary to set this DTC are not present at this time. Check for intermittent poor connections or faulty circuits and repair as necessary.
  2. Turn ignition off. Remove left front headlight assembly from vehicle and disconnect left front turn signal/parking light connector. Using a test light connected to battery voltage, probe left turn signal connector terminal No. 3 (Black/Brown wire). If test light illuminates brightly, go to next step. If test light does not illuminate brightly, repair open or high resistance in Black/Brown wire between left front turn signal/parking light and splice located before ground connection near left headlight assembly.
  3. Turn ignition on. Activate left turn signals. Using a test light connected to ground, probe left turn signal connector terminal No. 1 (White/Light Green wire). If test light does not illuminate brightly, go to next step. If test light illuminates brightly, replace left front turn signal/parking light bulb.
  4. Turn ignition off. Disconnect Intelligent Power Module (IPM) connector C2. See Figure . Using DVOM, measure resistance of White/Light Green wire between IPM connector C2 terminal No. 7 and left front turn signal/parking light connector terminal No. 1. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in White/Light Green wire.
  5. Locate and disconnect Body Control Module (BCM) connector C2. See COMPONENT LOCATIONS  . See Figure . Using DVOM, measure resistance between IPM connector C2 terminal No. 7 and BCM connector C2 terminal No. 1 (White/Light Green wire). If resistance is 5 ohms or less, replace BCM. See BODY CONTROL MODULE  under REMOVAL & INSTALLATION. If resistance is greater than 5 ohms, go to next step.
  6. Disconnect IPM connector C9. Using DVOM, measure resistance of White/Light Green wire between BCM connector C2 terminal No. 1 and IPM connector C9 terminal No. 5. If resistance is 5 ohms or less, replace IPM. If resistance is greater than 5 ohms, repair open in White/Light Green wire.
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