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Home >> Lexus >> 1992 >> LS 400 >> Repair and Diagnosis >> Brakes >> Traction Control >> Traction Control System >> Diagnostic Charts >> Code 52: Brake Fluid Level Warning Switch Circuit >> Diagnostic Chart
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Diagnostic Chart

Check brake fluid level. If fluid level is low, repair leakage. If fluid level is okay, check brake fluid level warning switch. If switch is not okay, replace switch. If switch is okay, check for short in all the harness and components connected to brake fluid level warning light. Repair or replace any faulty connectors or harnesses. If connectors are okay, check and replace ABS & TRAC ECU.