DTC Logic
DTC DETECTION LOGIC
DTC | Display Item | Malfunction detected condition | Possible causes |
C1198 | VACUUM SEN CIR |
|
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC C1198 detected? YES >> Proceed to diagnosis procedure. Refer to BRC-107, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to BRC-57, "Wiring Diagram".
1.CHECK VACUUM SENSOR CIRCUIT
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace malfunctioning components.
2.CHECK TERMINAL
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace malfunctioning components.
3.REPLACE VACUUM SENSOR
With CONSULT
CAUTION: Always replace brake booster because vacuum sensor cannot be disassembled.
Is DTC “C1198” detected? YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-136, "Removal and Installation".
NO >> Inspection End.
Symptom diagnosis
HEAVY TIGHT-CORNER BRAKING SYMPTOM OCCURS
Description
Heavy tight-corner braking symptom occurs when the vehicle is driven and the
steering wheel is turned fully to
either side after the engine is started.
NOTE:
Light tight-corner braking symptom may occur depending on driving conditions.
...
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-50190)
Signal Tech II
Activate and display TPMS transmitter IDs
Display tire pressure ...
Steering wheel turning force is heavy or light
Description
Steering wheel turning force is heavy or light.
Diagnosis Procedure
1.PERFORM SELF-DIAGNOSIS
With CONSULT
Turn the ignition switch OFF to ON.
Perform “EPS” self-diagnosis.
Is any DTC detected?
YES >> Check the DTC. Refer to STC-13, "DTC Index" ...