toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 3517 > < Component Tests and General Diagnostics|Page 3515
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(c) Reconnect the ECM connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BODY GROUND)
OK -- Continue to next step.

2. INSPECT ECM (IGSW VOLTAGE)

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

Standard Voltage:

Text in Illustration

(d) Reconnect the ECM connector.

NG -- INSPECT RELAY (IG2 RELAY)
OK -- Continue to next step.

3. INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY (EFI MAIN RELAY)

(a) Remove the engine room junction block assembly from the engine room relay block.
(b) Disconnect the engine room junction block assembly connector.

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