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.
Parking brake
WARNING
Be sure the parking brake is fully released
before driving. Failure to do so
can cause brake failure and lead to an
accident.
Do not release the parking brake from
outside the vehicle.
Do not use the shift lever in place of the
parking brake. When parking, be sure
the par ...
U0140 Lost communication (BCM)
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0140
Lost Communication With Body
Control Module
When the ignition switch is ON,
TCM is unable to receive the
CAN communications signal
from BCM continuously ...