B2558

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION


B2558 SHIFT POSITION


DIAGNOSIS DESCRIPTION
B2558 shift position input system monitors the A/T selector lever position. If there is the difference between the input from A/T shift selector, the input from A/T assembly, and CAN communication input from A/T control unit, it judges that it is the malfunction and displays the DTC (Diagnostic Trouble Code)

TERMINALS AND REFERENCE VALUE FOR INTELLIGENT KEY UNIT






SELF-DIAGNOSTIC LOGIC






DIAGNOSTIC PROCEDURE
1.CHECK A/T SHIFT SELECTOR SIGNAL
1. Turn ignition switch ON.
2. Check voltage between Intelligent Key unit connector and ground.










OK or NG
OK - GO TO 4.
NG - GO TO 2.
2.CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and A/T shift selector connector.
3. Check continuity between Intelligent Key unit connector and A/T shift selector connector.










4. Check continuity between Intelligent Key unit connector and ground.





OK or NG
OK - GO TO 3.
NG - Repair or replace harness.
3.CHECK A/T SHIFT SELECTOR
Check A/T shift selector.










OK or NG
OK - Check the condition of harness and connector. If it is
OK, check the self-diagnosis results using CONSULT-III again.
NG - Replace A/T shift selector.
4.CHECK TCM SIGNAL
Check Intelligent Key unit connector and ground.










OK or NG
OK - Check the condition of harness and connector. If it is
OK, check the self-diagnosis results using CONSULT-III again.
NG - GO TO 5.
5.CHECK HARNESS CONTINUITY 2
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and TCM connector.
3. Check continuity between Intelligent Key unit connector and TCM connector.










4. Check continuity between Intelligent Key unit connector and ground.





OK or NG
OK - Replace TCM.
NG - Repair or replace harness.