Diagnosis Procedure
1.CHECK DTC WITH BCM
Check that DTC is not detected with BCM
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform trouble diagnosis relevant to DTC indicated.
2.CHECK DTC WITH COMBINATION METER
Check that DTC is not detected with combination meter
Is the inspection result normal?
YES >> GO TO 3.
NO >> Perform trouble diagnosis relevant to DTC indicated.
3.CHECK INTELLIGENT KEY WARNING BUZZER
Check Intelligent Key warning buzzer.
Refer to DLK "Component Function Check".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK COMBINATION METER BUZZER
Check combination meter buzzer.
Refer to DLK "Component Function Check".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.CHECK DOOR SWITCH
Check front door switch (driver side).
Refer to DLK "Component Function Check".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace the malfunctioning parts.
6.CHECK KEY WARNING LAMP
Check key warning lamp.
Refer to DLK "Component Function Check".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace the malfunctioning parts.
7.CHECK SHIFT P WARNING LAMP
Check shift P warning lamp.
Refer to DLK "Component Function Check".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace the malfunctioning parts.
8.REPLACE BCM
Is the result normal?
YES >> Inspection End.
NO >> Check intermittent incident. Refer to GI "Intermittent Incident".
OFF Position warning does not operateDiagnosis Procedure 1.CHECK DTC WITH BCM Check that DTC is not detected with BCM Is the inspection result normal? YES >> GO TO 2. NO >> Perform trouble diagnosis relevant to DTC ind ...

Diagnosis Procedure 1.CHECK DTC WITH BCM Check that DTC is not detected with BCM Is the inspection result normal? YES >> GO TO 2. NO >> Perform trouble diagnosis relevant to DTC ind ...
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 ...
Low tire pressure warning lamp
does not turn off
Diagnosis Procedure
1.INSPECT BCM CONNECTOR
Turn ignition switch OFF.
Disconnect BCM connectors.
Check terminals for damage or loose connections.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts.
2.BCM POWER SUPPLY AND GROUND CIRCUITS ...