Toyota 2GR-FE Manual page 602

ES–446
7
CHECK HARNESS AND CONNECTOR (ECM - ENGINE ROOM JUNCTION BLOCK)
Wire Harness Side:
Engine Room Junction Block
ES
Engine Room Relay Block
A55 ECM Connector
+B2
OK
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
1E
+B
A140660E01
(a) Disconnect the A55 ECM 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
1E-6 - +B (A55-2)
1E-6 - +B2 (A55-1)
Standard resistance (Check for short)
Tester Connection
1E-6 or +B (A55-2) - Body ground
1E-6 or +B2 (A55-1) - Body ground
(d) Reinstall the engine room junction block.
(e) Reconnect the ECM connector.
NG
REPAIR OR REPLACE HARNESS OR
CONNECTOR
Specified Condition
Below 1 Ω
Below 1 Ω
Specified Condition
10 kΩ or higher
10 kΩ or higher