LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2009 >> Highlander 2WD L4-2.7L (1AR-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Main Relay (Computer/Fuel System) >> Testing and Inspection >> Integration Relay
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Integration Relay








1AR-FE ENGINE CONTROL SYSTEM: INTEGRATION RELAY: INSPECTION

INSPECTION

1. INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY





(a) Inspect the EFI No. 1 fuse.
(1) Remove the EFI No. 1 fuse.
(2) Using an ohmmeter, measure the resistance of the fuse.
Standard Resistance:






(b) Inspect the A/F fuse.
(1) Remove the A/F fuse.
(2) Using an ohmmeter, measure the resistance of the fuse.
Standard Resistance:






(c) Inspect EFI relay.




(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:





NOTE: While using the battery for the inspection, do not bring the positive(+) and negative(-) tester probes too close to each other as a short circuit may occur.

(d) Inspect the A/F relay.




(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:





NOTE: While using the battery for the inspection, do not bring the positive(+) and negative(-) tester probes too close to each other as a short circuit may occur.