DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
U1044 | ENG COMM CIRCUIT (Engine communication circuit | A signal voltage of LIN communication between ECM and generator is excessively low or excessively high |
POSSIBLE CAUSE
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted. always perform the following procedure before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is DTC detected? YES >> Proceed to EC-173, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK LIN COMMUNICATION CIRCUIT
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.REPLACE GENERATOR
Is DTC detected again? YES >> Replace ECM. Refer to EC-499, "Removal and Installation".
NO >> INSPECTION END
Preparation
Special Service Tool
The actual shapes of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
KV991J0070
(J-45695-A)
Coolant refill tool
Refilling engine cooling system
—
(J-48891)
14 ...
The parking brake release warning continues sounding, or
does not sound
Description
The parking brake warning buzzer sounds continuously during vehicle
travel though the parking brake is
released.
The parking brake warning buzzer does not sound at all even though
driving the vehicle with the parking
brake applied.
Diagnosis Procedure
1. CHECK P ...
Wiring diagram
POWER DOOR LOCK SYSTEM
Wiring Diagram
REMOTE KEYLESS ENTRY SYSTEM
Wiring Diagram
...