Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2005 Toyota Avalon XLSFACTORY OEM SERVICE PROCEDURE
Inspection Procedure
- CHECK WIRE HARNESS (MULTIPLEX NETWORK SWITCH ASSY - BATTERY AND BODY GROUND)
- Disconnect the H6 connector.
- Measure the resistance according to the value (s) in the table below.
Standard:
SPECIFIED CONDITIONTester Connection Condition Specified Condition H6-7 (E) - Body ground Always Below 1 Ω - Measure the voltage according to the value (s) in the table below.
Standard:
SPECIFIED CONDITIONTester Connection Condition Specified Condition H6-12 (BW) - Body ground Always 10 to 14 V
- NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
- OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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