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B2603 SHIFT POSITION STATUS SEC-65 < DTC/CIRCUIT DIAGNOSIS > [INTELLIGENT KEY SYSTEM] C D E F G H I J L M A B SEC N O P B2603 SHIFT POSITION STATUS Description INFOID:0000000005249479 BCM confirms the shift position with the following 4 signals. DTC Logic INFOID:0000000005249480 DTC DETECTION LOGIC NOTE: • If DTC B2603 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE 1. Start the engine under the following conditions and wait for at least 1 second. - Selector lever is in the P position. - Do not depress the brake pedal. 2. Check “Self diagnostic result” with CONSULT-III. Is DTC detected? YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000005249481 1. CHECK DTC WITH TCM Check “Self diagnostic result” with CONSULT-III. Refer to (VK50VE). Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace the malfunctioning parts. 2. CHECK TRANSMISSION RANGE SWITCH CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect A/T assembly connector and BCM connector M123. 3. Check continuity between TCM harness connector and BCM harness connector. 4. Check continuity between TCM harness connector and ground. DTC Self-diagnosis name DTC detecting condition Possible causes B2603 SHIFT POSITION BCM detects the followings status for 500 ms or • Harness or connector (A/T shift selector circuit is open or • Harness or connectors [Transmission range switch circuit is • A/T shift selector (detention switch) A/T assembly BCM Continuity Connector Terminal Connector Terminal F51 9 M123 140 Existed |