Toyota 2GR-FE Manual page 347

4
INSPECT HEATED OXYGEN SENSOR (CHECK FOR SHORT)
Component Side:
Heated Oxygen Sensor
+B
C52
Bank 1
E2
+B
C51
Bank 2
E2
OK
REPAIR OR REPLACE HARNESS OR CONNECTOR
5
PERFORM CONFIRMATION DRIVING PATTERN
NEXT
6
CHECK WHETHER DTC OUTPUT RECURS (DTC P0138 or P0158)
Result
Display (DTC Output)
P0138 or P0158
No output
A
REPLACE HEATED OXYGEN SENSOR (See page EC-20)
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Disconnect the C52 oxygen sensor connector (Bank 1
Sensor 2) or C51 oxygen sensor connector (Bank 2
sensor 2).
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance (Bank 1 sensor 2)
HT1B
OX1B Standard resistance (Bank 2 sensor 2)
HT2B
NG
OX2B
A137614E04
(a) On the intelligent tester, enter the following menus:
DIAGNOSIS / ENHANCED OBD II / DTC INFO /
CURRENT CODES.
(b) Read the DTCs.
B
Tester Connection
+B (2) - E2 (4)
+B (2) - OX1B (3)
Tester Connection
+B (2) - E2 (4)
+B (2) - OX2B (3)
REPLACE HEATED OXYGEN SENSOR (See
page EC-20)
Proceed to
A
B
CHECK FOR INTERMITTENT PROBLEMS
ES–191
Specified Condition
10 kΩ or higher
10 kΩ or higher
ES
Specified Condition
10 kΩ or higher
10 kΩ or higher