Toyota 2GR-FE Manual page 550

ES–394
A
2
INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE)
Component Side:
+B
ES
C15
Bank 1
A1A-
A/F Sensor Front View
+B
C35
Bank 2
A2A-
A/F Sensor Front View
OK
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
HINT:
If any DTCs other than P2A00 or P2A03 are output,
troubleshoot those DTCs first.
B
(a) Disconnect the C15 or C35 A/F sensor connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance (Bank 1 sensor 1)
HA1A
Tester Connection
HA1A (1) - +B (2)
HA1A (1) - A1A- (4)
Standard resistance (Bank 2 sensor 1)
A1A+
Tester Connection
HA2A (1) - +B (2)
HA2A (1) - A2A- (4)
HA2A (c) Reconnect the A/F sensor connector.
NG
A2A+
A126269E12
GO TO DTC CHART (See page ES-63)
Condition
20°C (68°F)
-
Condition
20°C (68°F)
-
REPLACE AIR FUEL RATIO SENSOR (See
page EC-19)
Specified Condition
1.8 to 3.4 Ω
10 kΩ or higher
Specified Condition
1.8 to 3.4 Ω
10 kΩ or higher