toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 1830 > < Component Tests and General Diagnostics|Page 1828
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(a) Remove the EFI relay from the engine room relay block.
(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

(c) Reinstall the EFI relay.

NG -- REPLACE EFI RELAY
OK -- Continue to next step.

9. CHECK HARNESS AND CONNECTOR (EFI RELAY- ECM, EFI RELAY - BODY GROUND)

(a) Check the harness and connector between the EFI relay and ECM.

(1) Remove the EFI relay from the engine room relay block.
(2) Disconnect the E47 ECM connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for open):

Standard Resistance (Check for short):

(4) Reinstall the EFI relay.
(5) Reconnect the ECM connector.

(b) Check the harness and connector between the EFI relay and body ground.

(1) Remove the EFI relay from the engine room relay block.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for open):

(3) Reinstall the EFI relay.

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