Diagnosis Procedure
1.CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair battery terminal connection. Confirm repair by performing complete Charging system test using EXP-800 NI or GR8-1200 NI (if available). Refer to the applicable Instruction Manual for proper testing procedures.
2.CHECK FUSE
Check for blown fuse and fusible link.

Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace the blown fuse or fusible link after repairing the affected circuit.
3.CHECK GENERATOR GROUND TERMINAL CONNECTION
Check if connector F4 terminal 5 is clean.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair connection.
4.CHECK DRIVE BELT TENSION
Check drive belt tension. Refer to EM "Inspection".
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair as needed.

Diagnosis Procedure Regarding Wiring Diagram information. Refer to CHG "Wiring Diagram". CAUTION: When performing this inspection, always use a charged battery that has completed the ...
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 ...
S connector circuit
Description
The starter motor magnetic switch is supplied with power when the ignition
switch is turned to the START position
while the selector lever is in the P (Park) or N (Neutral) position.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to STR, "Wiring Diagram - Wit ...