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B20D1 HEADLAMP (LO) RH POWER SUPPLY CIRCUIT EXL-317 < DTC/CIRCUIT DIAGNOSIS > [HALOGEN HEADLAMP] C D E F G H I J K M A B EXL N O P B20D1 HEADLAMP (LO) RH POWER SUPPLY CIRCUIT DTC Description INFOID:0000000010789842 DTC DETECTION LOGIC POSSIBLE CAUSE • Harness or connector FAIL-SAFE Shuts off the power supply to the headlamp (LO) RH power supply circuit until the headlamp (LO) ON condi- DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING With CONSULT 1. Turn ignition switch ON. 2. Select “HL (LO) RH CIRC MALFUNCTN” in “Data Monitor” mode of “IPDM E/R” using CONSULT. 3. Check the monitor status. What is the monitor status? “0” >> GO TO 2. “1” >> A short circuit is detected multiple times in the headlamp (LO) RH power supply circuit, and dam- age accumulates at the smart FET inside the IPDM E/R. For this reason, IPDM E/R does not turn and replace IPDM E/R after the malfunctioning part is repaired. Refer to 60, "Removal and Installation" . 2. PERFORM DTC CONFIRMATION PROCEDURE With CONSULT 1. Turn ignition switch OFF. 2. Turn ignition switch ON. 3. Turn lighting switch 2ND. 4. Select “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT. 5. Check DTC. Is DTC detected? YES >> Refer to EXL-317, "Diagnosis Procedure" . NO-1 >> To check malfunction symptom before repair: Refer to GI-44, "Intermittent Incident" NO-2 >> Confirmation after repair: INSPECTION END Diagnosis Procedure INFOID:0000000010789843 1. CHECK HEADLAMP (LO) RH POWER SUPPLY CIRCUIT (SHORT) 1. Turn ignition switch OFF. 2. Turn lighting switch OFF. DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B20D1 HL (LO) RH PWR SPLY CIRC [CIRC When headlamp (LO) ON conditions are satisfied (smart Monitor item Monitor status HL (LO) RH CIRC MALFUNCTN 0 1 |