DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0524 | ENGINE OIL PRESSURE (Engine oil pressure too low) | An EOP sensor signal voltage applied to ECM remains lower than the specified value continuously for 10 seconds or more when the engine speed is 1,000 rpm or more. |
POSSIBLE CAUSE
FAIL-SAFE
DTC CONFIRMATION PROCEDURE
CAUTION: If “EC-362, "Diagnosis Procedure"” is unfinished, be sure to perform Step 3 and 4.
1.PRECONDITIONING-1
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TEST CONDITION: Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
>> GO TO 2.
2.PRECONDITIONING-2
Is “Diagnosis Procedure” of DTC P0524 finished? YES >> GO TO 3.
NO >> GO TO 4.
3.PERFORM DTC CONFIRMATION PROCEDURE
Selector lever | P or N position |
Engine coolant temperature | 70°C (158°F) or more |
Engine speed | 1,000 rpm or more |
NOTE: With engine speed set around 4,000 rpm, the phenomenon can be reproduced more easily.
3. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Proceed to EC-362, "Diagnosis Procedure".
NO >> INSPECTION END
4.CHECK ENGINE OIL LEVEL
Check engine oil pressure. Refer to LU-7, "Inspection".
Is the inspection result normal? YES >> GO TO 5.
NO >> Proceed to EC-362, "Diagnosis Procedure".
5.CHECK ENGINE OIL PRESSURE
With CONSULT
Monitor item | Condition | Value (Approx.) | |
EOP SENSOR |
|
Engine speed: Idle | 1,450 mV or more |
Engine speed: 2,000 rpm | 2,850 mV or more |
Without CONSULT
Check engine oil level. Refer to LU-7, "Inspection".
Is the inspection result normal? YES >> GO TO 3.
NO >> Proceed to EC-362, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK ENGINE OIL LEVEL
Is the inspection result normal? YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK ENGINE OIL PRESSURE
With CONSULT
Monitor item | Condition | Value (Approx.) | |
EOP SENSOR |
|
Engine speed: Idl | 1,450 mV or more |
Engine speed: 2,000 rpm | 2,850 mV or more |
Without CONSULT
Check engine oil pressure. Refer to LU-7, "Inspection".
Is the inspection result normal? YES >> GO TO 3.
NO >> Check oil pump. Refer to LU-15, "Inspection".
3.CHECK EOP SENSOR
Check EOP sensor. Refer to EC-360, "Component Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
4.CHECK ENGINE OIL LEAKAGE
Check engine oil leakage. Refer to LU-6, "Engine Lubrication System Schematic".
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK CAUSE OF ENGINE OIL CONSUMPTION
Check the following item.
>> Repair or replace error-detected parts.
6.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK EOP SENSOR
Is the inspection result normal? YES >> INSPECTION END.
NO >> Replace EOP sensor. Refer to EC-14, "Component Parts Location".
VDC warning lamp
Component Function Check
1.CHECK VDC WARNING LAMP FUNCTION
Check that VDC warning lamp in combination meter turns ON for 1 second after
ignition switch is turned ON.
CAUTION:
Never start the engine.
Is the inspection result normal?
YES >> Inspection End.
NO >> Proceed to BRC ...
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow (With GR8-1200 NI)
STARTING SYSTEM DIAGNOSIS WITH GR8-1200 NI
To test the starting system, use the following special service tool:
GR8-1200 NI Multitasking battery and electrical diagnostic station
NOTE:
Refer to the diagnostic station Instruc ...
C1199 brake booster
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.
Harness or connector
Vacuum sensor (brake booster)
...