Toyota Camry Manual page 1367

DI–340
DTC P1130
DTC P1150
CIRCUIT DESCRIPTION
Refer to DTC P0125 (Insufficient Temp. for Closed Loop Fuel Control (Only for California Spec.)) on Page
DI–249.
DTC No.
Voltage output* of A/F sensor remains at 3.8 V or more, or
2.8 V or less, during engine running after engine is warmed
up (2 trip detection logic)
*: Output value changes at inside of ECM only.
Voltage output* of A/F sensor does not change from 3.30 V,
P1130
during engine running after engine is warmed up
P1150
(2 trip detection logic)
*: Output value changes at inside of ECM only.
Open or short in A/F sensor circuit
(2 trip detection logic)
HINT:
D
After confirming DTC P1130 or P01150, use the OBD II scan tool or TOYOTA hand–held tester to con-
firm voltage output of A/F sensor (AFS B1 S1/O2S B1 S1) from "CURRENT DATA".
D
The A/F sensor's output voltage and the short–term fuel value can be read using the OBD II scan tool
or TOYOTA hand–held tester.
D
The ECM controls the voltage of AFR/AFLX and AFR/AFLu terminals of ECM to the fixed voltage.
Therefore, it is impossible to confirm the A/F sensor output voltage without OBD II scan tool or TOYOTA
hand–held tester.
D
OBD II scan tool (excluding TOYOTA hand–held tester) displays the one fifth of the A/F sensor output
voltage which is displayed on the TOYOTA hand–held tester.
WIRING DIAGRAM
Refer to DTC P0125 (Insufficient Coolant Temp. for Closed Loop Fuel Control (Only for California Spec.))
on page DI–249.
DIAGNOSTICS
A/F Sensor Circuit Range/Performance Mal-
function (Only for California Spec.)
A/F Sensor Circuit Range/Performance Mal-
function (Only for California Spec.)
DTC Detecting Condition
– ENGINE (1MZ–FE)
D Open or short in A/F sensor (bank 1, 2 sensor 1) circuit
D A/F sensor (bank 1, 2 sensor 1)
D ECM
Author :
Trouble Area
Date :
DI1K6–03
575