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PCS-60 < DTC/CIRCUIT DIAGNOSIS > [POWER DISTRIBUTION SYSTEM] B261A PUSH-BUTTON IGNITION SWITCH B261A PUSH-BUTTON IGNITION SWITCH Description INFOID:0000000010049444 IPDM E/R transmits the push-button ignition switch status via CAN communication to BCM. BCM receives push-button ignition switch status by hardwire input. BCM compares the 2 signals for mismatch. DTC Logic INFOID:0000000010049445 DTC DETECTION LOGIC NOTE: • If DTC B261A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to . • If DTC B261A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to . DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE 1. Press the push-button ignition switch under the following conditions and wait for at least 1 second. - CVT selector lever is in the P position - Do not depress brake pedal. 2. Check “Self diagnostic result” with CONSULT. YES >> Refer to . NO >> Inspection End. Diagnosis Procedure INFOID:0000000010049446 Regarding Wiring Diagram information, refer to 1. CHECK PUSH-BUTTON IGNITION SWITCH OPERATION Press push-button ignition switch and check if it turns to ON. YES >> GO TO 2 NO >> GO TO 4 2. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R) DTC No. Trouble diagnosis name DTC detecting condition Possible cause B261A PUSH-BUTTON BCM detects the mismatch between the following for 1 • Harness or connectors (Push-button ignition switch circuit is • Between BCM and push-button igni- tion switch • Between IPDM E/R and push-button ignition switch |