DTC Logic
DTC DETECTION LOGIC
| DTC | Display Item | Malfunction detected condition | Possible causes |
| C1199 | BRAKE BOOSTER | When brake booster vacuum is approx. 0 kPa (0 mm- Hg) during engine running. |
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC C1199 detected? YES >> Proceed to diagnosis procedure. Refer to BRC-109, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to BRC-57, "Wiring Diagram".
1.CHECK BRAKE BOOSTER
Is the inspection result normal? YES >> GO TO 2.
NO >> Replace brake booster. Refer to BR-30, "Removal and installation".
2.CHECK VACUUM PIPING
Check vacuum piping. Refer to BR-32, "Exploded View".
Is the inspection result normal? YES >> GO TO 3.
NO >> Replace vacuum piping. Refer to BR-32, "Removal and Installation".
3.CHECK VACUUM SENSOR CIRCUIT


Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace malfunctioning components.
4.CHECK TERMINAL
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace malfunctioning components.
5.REPLACE VACUUM SENSOR
With CONSULT
CAUTION: Always replace brake booster because vacuum sensor cannot be disassembled.
Is DTC “C1199” detected? YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-136, "Removal and Installation".
NO >> Inspection End.
C1198 vacuum sensor
C119A vacuum sensorPreparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here
Tool number
(TechMate No.)
Tool name
Description
—
(J-46534)
Trim Tool Set
Removing trim components
Commercial Service Tools
Tool name
...
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Workflow
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW CUSTOMER
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2.SYMPTOM CHECK
Verify symptoms.
...
Does not operate
Description
VDC function, TCS function, ABS function, EBD function, Brake limited slip
differential (BLSD) function, Brake
assist function, hill start assist function or Brake force distribution function
does not operate.
Diagnosis Procedure
CAUTION:
VDC function, TCS function, ABS ...