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BF135A•BF150A
5-101
Check without test harness:
1. Turn the ignition switch OFF and disconnect the 2P
connector from the respective injectors.
2. Disconnect the ECM connector B and C.
3. Check for the continuity between the ECM connector B
and each injector harness side 2P connector:
ECM connector B
Injector
No.21 (Brown)
No.2 (Brown) of the No.1 injector
No.23 (Red)
No.2 (Red) of the No.2 injector
No.27 (Blue)
No.2 (Blue) of the No.3 injector
No.29 (Yellow)
No.2 (Yellow) of the No.4 injector
Is there the continuity?
YES –
NO –
Repair open in the wire between the injector
and the ECM.
4. Check for the continuity between the injector harness
side 2P connector terminal and engine ground:
No.2 (Brown) of No.1 injector and engine ground.
No.2 (Red) of No.2 injector and engine ground.
No.2 (Blue) of the No.3 injector and engine ground.
No.2 (Yellow) of the No.4 injector and engine ground
Is there the continuity?
YES –
Repair open in the wire between the ECM
and the injector.
NO –
Go to the step 5.
5. Connect the injector 2P connector.
6. Turn the ignition switch ON.
Measure the voltage
between the No.1 (Yellow/Black) terminal of each
injector harness side terminal and the engine ground.
Is there the battery voltage?
YES –
End of the check (Good)
NO –
Check the injector (P. 5-105). If it is normal,
repair open in the wire between the No.4
(15A) fuse and the injector.
BROWN
RED
BLUE YELLOW
No. 1
No. 2
No. 3
No. 4
ECM CONNECTOR B
VIEWED FROM THE TERMINAL SIDE
INJECTOR HARNESS
SIDE 2P CONNECTORS
INJECTOR HARNESS
SIDE 2P CONNECTORS
VIEWED FROM THE TERMINAL SIDE
INJECTOR HARNESS
SIDE 2P CONNECTOR
VIEWED FROM THE TERMINAL SIDE
BROWN
No. 1
No. 2
No. 3
No. 4
RED
BLUE
YELLOW
YELLOW/BLACK