Component Function Check
1.CHECK FUNCTION
Is the inspection result normal?
YES >> Hazard warning lamp circuit is OK.
NO >> Refer to DLK "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK HAZARD SWITCH CIRCUIT
Refer to EXL "Component Function Check".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK INTERMITTENT INCIDENT
Refer to GI "Intermittent Incident".
>> Inspection End.
P1148 closed loop control
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to
A/F sensor 1.
DTC No.
Trouble diagnosis
(Trouble diagnosis content)
DTC detecting condition
Possible cause ...
P074C Unable to engage 4GR
Description
This malfunction is detected when the A/T does not shift into 4GR position as
instructed by TCM. This is not
only caused by electrical malfunction (circuits open or shorted) but by
mechanical malfunction such as control
valve sticking, improper solenoid valve operation, etc.
DTC ...