Toyota 2VZ-FE Manual page 165

FI–58
EFI SYSTEM – Electronic Control System (Electronic Control Unit (ECU))
INSPECTION OF ECU
HINT: The EFI circuit can be checked by measuring the resis-
tance and voltage at the wiring connectors of the ECU.
1. PREPARATION
(a) Disconnect the connectors from the ECU.
(b) Remove the locks as shown in the illustration so that the
test probe(s) can easily come in.
NOTICE: Pay attention to sections "A" and "B" in the il-
lustration which can be easily broken.
(c) Reconnect the connectors to the ECU.
2. INSPECT VOLTAGE OF ECU
Check the voltage between each terminal of the wiring con-
nectors.
Turn the ignition switch ON.
Measure the voltage at each terminal.
HINT:
Perform all voltage measurements with the connectors
connected.
erify that the battery voltage is 11 V or more when the
ignition switch is ON.