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2008 Lexus RX400h – ABS Brake and TRAC Lights With C1391

Aug 15
1 min read

Updated: Aug 15

CUSTOMER CONCERN

Customer states the ABS, brake and traction-control warning lights are on. DTCs C1241, C1256 and C1391 are stored.

CAUSE

Accumulator-pressure voltage dropped after the pump shut off, confirming internal leakage in the ABS brake actuator assembly.

CORRECTION

Remove and replace ABS brake actuator assembly. Perform actuator initialization and brake-system bleed. Clear brake DTCs.

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2008 Lexus RX400h – ABS Brake and TRAC Lights With C1391

CUSTOMER CONCERN

CAUSE

CORRECTION

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