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Home >> Lexus >> 1992 >> LS 400 >> Repair and Diagnosis >> Brakes >> Traction Control >> Traction Control System >> Diagnostic Charts >> Code 56: TRAC Pump Motor Lock Sensor Circuit >> Circuit Description
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Circuit Description

The TRAC pump motor lock sensor senses when the TRAC pump motor is locked and sends signals to the ECU, which prohibits TRAC control when it is detected.

CODE 56 DIAGNOSTIC

Code No. Diagnosis Trouble Area
56 TRAC pump motor is locked. Open for TRAC pump motor ground. TRAC pump motor. Harness or connector between TRAC pump & motor and body ground. Harness or connector between TRAC pump & motor and ECU. (Open in ML+, ML- harness). ECU
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