Without Intelligent Key System

B20A0 CRANKING REQUEST CIRCUIT





DTC Logic

DTC DETECTION LOGIC

NOTE:
If DTC B20A0 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. IPDM E/R Without I-Key.





DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Perform DTC CONFIRMATION PROCEDURE for DTC P1650. P1650.
2. Turn ignition switch ON.
3. Check DTC in "Self Diagnostic Result" mode of "IPDM E/R" using CONSULT-III.
Is DTC detected?
YES - SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK CRANKING REQUEST SIGNAL
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R harness connector and ground under the following conditions.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK CRANKING REQUEST SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Disconnect ECM connector.
4. Check continuity between IPDM E/R harness connector and ECM harness connector.





5. Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.REPLACE IPDM E/R
1. Replace IPDM E/R. IPDM E/R (Without I-Key).
2. Perform DTC CONFIRMATION PROCEDURE for DTC B20A0. SEE DTC Logic.
Is DTC detected?
YES - GO TO 4.
NO - INSPECTION END
4.REPLACE ECM
Replace ECM. Service and Repair.
- INSPECTION END