Toyota ZZT230 series, Repair Manual

Page: 260 / 821

)
DIAONOSTJCS
ENGINE
DTC
P0130 Oxy
�
n Sensor Circuit Malfunction
(Ban 1 Sensor 1 )
CIRCUIT DESCRIPTION
Relerto
OTC
P0125
(Insufficient Coolant Temp. for Closed Loop Fuel Control) on page Dl-44.
DTC No. DTC Condition Trouble Area
•Open
or
short in heated oxygen sensor circuit
• Heated oxygen sensor
Voltage output of
oxygen sensor remains at
0.4
V or
more, or • Air induction system
P0130
0.55 V
« less,
during idling after the engine
is
warmed up (2
•EGR
system
trip
detection
logic)
• Fuel pressure
•Injector
•ECM
HINT: Sensor
1
refers to the sensor closer to the engine body.
The oxygen sensor's output
voltage and the short-term fuel trim value can be read using the
OBD II
scan tool or
TOYOTA hand-held tester.
WIRING DIAGRAM
Dl-49
-
Refer to
DTC
P0125
(Insufficient Coolant Temp. for Closed Loop Fuel Control) on page Dl-44 for the
WIR·
lNG DIAGRAM.