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EC-1132
[YD (WITH EURO-OBD)]
DTC P0134 A/F SENSOR 1
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
TER-
MINAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
34 L A/F sensor 1 heater
[Engine is running]
● After the vehicle is driven for 6 minutes
under the following conditions.
– Warm-up condition
– Vehicle speed: 80km/h (50MPH)
– Shift lever: Suitable gear position
Approximately 5V
[Ignition switch: ON]
● Engine: Stopped
BATTERY VOLTAGE
(11 - 14V)
35 B ECM ground
[Engine is running]
● Warm-up condition
● Idle speed
Approximately 0V
67 —
Sensor ground
(Sensor shield circuit)
[Ignition switch ON] Approximately 0.3V
85 W A/F sensor 1 (-)
[Engine is running]
● Idle speed
1.8 -2.1V
93 OR A/F sensor 1 (+)
[Engine is running]
● Idle speed
2.2 - 2.5V
PBIB3207E
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