DTC DETECTION LOGIC
NOTE:

DTC CONFIRMATION PROCEDURE
1. PERFORM SELF DIAGNOSTIC RESULT
1. Turn ignition switch ON under the following conditions, and wait for at least 1 second.
2. Perform self diagnostic result.
Is DTC B2618 detected?
YES >> Refer to PCS "Diagnosis Procedure".
NO >> Inspection End.
Regarding Wiring Diagram information, refer to PCS "Wiring Diagram".
1.CHECK IGNITION RELAY-1 CONTROL SIGNAL
Check voltage between BCM harness connector and ground.

Is the inspection result normal?
YES >> Replace BCM. Refer to BCS "Removal and Installation".
NO >> GO TO 2.
2.CHECK IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and IPDM E/R.
3. Check continuity between BCM harness connector and IPDM E/R harness
connector.
4. Check continuity between BCM harness connector and ground.

Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK VOLTAGE OF IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT (IPDM E/R SIDE)
1. Connect IPDM E/R connector.
2. Check voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS "Removal and Installation".
NO >> Replace IPDM E/R.
S connector circuit
Description
The starter motor magnetic switch is supplied with power when the ignition
switch is turned to the START position
while the selector lever is in the P (Park) or N (Neutral) position.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to STR, "Wiring Diagram - Wit ...
U0300 Can communication data
Description
The amount of data transmitted from each control unit is read.
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0300
Internal Control Module Software
Incompatibility
When the amount of data transmitt ...