Toyota Workshop Service and Repair Manuals

(a) Disconnect the fuel injector connectors.
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

(d) Reconnect the fuel injector connectors.

NG -- CHECK HARNESS AND CONNECTOR (FUEL INJECTOR - INTEGRATION RELAY)
OK -- Continue to next step.

2. INSPECT FUEL INJECTOR (INJECTOR RESISTANCE)

(a) Disconnect the fuel injector connectors.
(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

(c) Reconnect the fuel injector connectors.

NG -- REPLACE FUEL INJECTOR
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR - ECM)