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SEC-74 < DTC/CIRCUIT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM] B2556 PUSH-BUTTON IGNITION SWITCH B2556 PUSH-BUTTON IGNITION SWITCH DTC Logic INFOID:0000000009650733 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE 1. Press push-button ignition switch under the following condition. - Brake pedal: Not depressed 2. Release push-button ignition switch and wait 100 seconds or more. 3. Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT. Is DTC detected? YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000009650734 1. CHECK PUSH-BUTTON IGNITION SWITCH INPUT SIGNAL 1. Turn ignition switch OFF. 2. Disconnect push-button ignition switch connector. 3. Check voltage between push-button ignition switch harness connector and ground. Is the inspection result normal? YES >> GO TO 4. NO >> GO TO 2. 2. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT 1. Disconnect BCM connector and IPDM E/R connector. 2. Check continuity between push-button ignition switch harness connector and BCM harness connector. 3. Check continuity between push-button ignition switch harness connector and ground. Is the inspection result normal? YES >> GO TO 3. NO >> Repair or replace harness. DTC No. Trouble diagnosis name DTC detecting condition Possible cause B2556 PUSH-BTN IGN SW BCM detects the push-button ignition switch • Harness or connectors (Push-button ignition switch circuit is • Push-button ignition switch (+) (–) Voltage (V) (Approx.) Push-button ignition switch Connector Terminal M101 4 Ground 9 - 16 Push-button ignition switch BCM Continuity Connector Terminal Connector Terminal M101 4 M124 76 Existed Push-button ignition switch Ground Continuity Connector Terminal M101 4 Not existed |