Toyota 2GR-FE Manual page 364

ES–208
12
INSPECT ENGINE ROOM JUNCTION BLOCK (A/F SENSOR HEATER RELAY)
Engine Room Junction Block
1A
ES
Engine Room Relay Block
OK
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Remove the engine room junction block from the engine
room R/B.
(b) Measure the A/F relay resistance.
Standard resistance
Tester Connections
1G-1 - 1A-4
1G
1G-1 - 1A-4
(c) Reinstall the engine room junction block.
1E
NG
A140654E01
Specified Conditions
10 kΩ or higher
(when battery voltage applied to terminals 1E-6
REPLACE ENGINE ROOM JUNCTION
BLOCK
Below 1 Ω
and 1E-10)