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DIAGNOSIS TSB Revision ACTIVE SKID CONTROL SYSTEM (ASC) 35C-239 STEP 6. Retest the system. OFF switch? − How to Cope with Intermittent Malfunction .) NO : Replace the ETACS-ECU. (Refer to GROUP 54A − ETACS-ECU .) Then, go to Step 7. STEP 7. Retest the system. OFF switch? 54A − Combination Meter .) Then, go to Step 8. STEP 8. Retest the system. OFF switch? Inspection Procedure 9: Abnormality in brake operation CAUTION • If there is any problem in the CAN bus lines, an incor- rect diagnostic trouble code may be set. Prior to this • Whenever the ECU is replaced, ensure that the CAN bus lines are normal. • When the hydraulic unit (integrated with ASC-ECU) is replaced, always perform the calibration of steering .) . TECHNICAL DESCRIPTION (COMMENT) Although it is difficult to determine the trouble cause since it . PROBABLE CAUSES • Malfunction of hydraulic unit (integrated with ABS-ECU) • Malfunction of hydraulic circuit • Malfunction of brake assembly • Malfunction of brake booster • Malfunction of master cylinder assembly |