Driver Side Junction Block Assembly (Body ECU) Rear Side
WARNING: This page is about a different car, the 2003 Lexus ES 300 and 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the body ECU. Disconnect the driver side junction block assembly connectors 2B and 2F. See Fig 1.
- Check the voltage or continuity of each terminal of the wire harness connector. See INSPECTING DRIVER SIDE JUNCTION BLOCK ASSEMBLY (BODY ECU) REAR SIDE table. If the value is not as specified, there may be a malfunction in the wire harness side.INSPECTING DRIVER SIDE JUNCTION BLOCK ASSEMBLY (BODY ECU) REAR SIDE
Tester Connection Condition Specified Condition 2B-12 (PWS) - Ground Constant 10-14 Volts 2F-7 (B) - Ground Constant 10-14 Volts 2R-8 (GND) - Ground Constant Continuity