Antilock Brakes / Traction Control Systems: Service and Repair

REMEDY FOR A DISCHARGED BATTERY





If the engine is jump-started, because of a completely discharged battery, the vehicle may suffer misfiring and fail to start if an attempt is made to start without allowing the battery to recover sufficiently. This is because the ABS consumes a great deal of current for its self check. In such a case, allow the battery to sufficiently charge or deactivate ABS in the following manner.
Disconnect the ABS-Electronic Control Unit (ECU) connector.
Removing the ABS causes the ABS warning light to light. After the battery is charged sufficiently, connect the ABS-ECU connector and restart the engine to check that the ABS warning light goes out.