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Home >> Toyota >> 2002 >> Highlander Base, 3.0 F, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System & Component Testing - 4-Cylinder) >> Computerized Engine Controls >> Fuel Pump Control Circuit >> Notes

Fuel Pump Control Circuit: Notes

WARNING: This page is about a different variant/trim than selected.
CAUTION: If Engine Control Module (ECM) replacement is instructed in the following testing, always ensure ECM wiring harness electrical connector and ground circuit are okay. If either are defective, repair and repeat testing to confirm ECM malfunction.
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