DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF DIAGNOSTIC RESULT
With CONSULT.
Is DTC C1142 detected?
YES >> Proceed to diagnosis procedure. Refer to BRC "Diagnosis Procedure".
NO >> Inspection End.
1.CHECK STOP LAMP SWITCH SYSTEM
Check stop lamp switch system. Refer to BRC "Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace malfunctioning components.
2.CHECK BRAKE FLUID LEAKAGE
Check brake fluid leakage. Refer to BR "Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace malfunctioning components.
3.CHECK BRAKE PEDAL
Check brake pedal. Refer to BR"Inspection and Adjustment".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace malfunctioning components.
4.CHECK SELF DIAGNOSTIC RESULT
With CONSULT.
Is DTC C1142 detected?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC "Removal and Installation".
NO >> Inspection End.
Electric ignition system
ELECTRIC IGNITION SYSTEM : System Diagram
ELECTRIC IGNITION SYSTEM : System Description
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed*3
Piston position
Ignition timing control
Igni ...
U0073 Communication bus a off
DTC Logic
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
U0073
Control Module Communication
Bus "A" Off
When the ignition switch is ON,
TCM detects a bus-off error
continuously for 2 seconds or
more.
Harness or connector
(CA ...