Toyota 2GR-FE Manual page 363

11
INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE)
A/F Sensor Bank 1
C15
+B
A1A-
C35
A/F Sensor Bank 2
+B
A2A-
OK
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Disconnect the C15 or C35 A/F sensor connector.
(b) Measure the resistance between the terminals of the A/F
sensor connector.
Standard resistance:
Bank 1
HA1A
Bank 2
A1A+
HA2A
(c) Reconnect the A/F sensor connector.
NG
A2A+
A126269E03
Tester Connections
HA1A (1) - +B (2)
HA1A (1) - A1A- (4)
Tester Connections
HA2A (1) - +B (2)
HT2A (1) - A2A- (4)
REPLACE AIR FUEL RATIO SENSOR (See
page EC-19)
ES–207
Specified Conditions
1.8 to 3.4 Ω at 20°C (68°F)
10 kΩ or higher
Specified Conditions
1.8 to 3.4 Ω at 20°C (68°F)
10 kΩ or higher
ES