Ground Circuits (LS400)
- Ensure ignition is off. Using a DVOM, measure resistance between ECU terminal No. 22 of connector E10 and ground with ECU connector connected. See Fig 1.
- Resistance should be one ohm or less. If resistance is within specification, no fault is present with ground circuits. If resistance is not within specification, carefully disconnect ECU connector.
- Check ECU ground terminal and wire harness connector for corrosion and damage. Repair as necessary.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002