Toyota 2GR-FE Manual page 277

OK
6
CHECK HARNESS AND CONNECTOR (A/F SENSOR - A/F RELAY)
Wire Harness Side:
A/F Sensor Connector
C15
: Bank 1
C35 : Bank 2
Engine Room Junction Block
A1
Engine Room Relay Block
OK
CHECK ECM POWER SOURCE CIRCUIT (See page ES-432)
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Disconnect the C15 or C35 A/F sensor connector.
(b) Remove the engine room junction block from the engine
room R/B.
(c) Measure the resistance between the terminals.
Standard resistance (Check for open)
Tester Connection
+B (C15-2) - 1A-4 (Engine room R/B)
+B (C35-2) - 1A-4 (Engine room R/B)
Standard resistance (Check for short)
Tester Connection
+B (C15-2) or 1A-4 (Engine room R/B) - Body ground
+B (C35-2) or 1A-4 (Engine room R/B) - Body ground
(d) Reinstall the engine room junction block.
(e) Reconnect the A/F sensor connector.
NG
A141109E01
REPAIR OR REPLACE HARNESS OR
CONNECTOR
ES–121
Specified Condition
Below 1 Ω
Below 1 Ω
ES
Specified Condition
10 kΩ or higher
10 kΩ or higher