Diagnostic Precautions

For Fast and Accurate Diagnosis
PRECAUTIONS FOR DIAGNOSIS
^ Before performing diagnosis, always read precautions. Refer to BRC-89, "PRECAUTIONS". Technician Safety Information
^ If ABS actuator and electric unit (control unit), steering angle sensor, steering system parts or suspension system parts have been replaced, or if alignment has been adjusted, be sure to adjust neutral position of steering angle sensor before driving. Refer to "Adjustment of Steering Angle Sensor Neutral Position".
^ After diagnosis is finished, be sure to erase memory. Refer to "SELF-DIAGNOSIS".
^ When checking continuity and voltage between units, be sure to check for disconnection, looseness, bend, or collapse of connector terminals. If any non-standard condition is found, repair or replace connector terminals.
^ For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals. Move harness, harness connector, and terminals to check for poor connections.
^ If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.
^ To use CONSULT-II to perform self-diagnosis of ABS actuator and electric unit (control unit), active tests, or work support, first stop work, then connect CONSULT-II and select "ABS".
^ CONSULT-II self-diagnosis results are displayed without regard to occurrence timing. In some cases later ones (timing value is small) appear on the next screen.
^ When self-diagnostic results of CONSULT-II show a malfunction, if CONSULT-II active test is performed, an engine system error may be indicated. In this case, start engine to resume the normal screen.





^ VDC/TCS/ABS system electronically controls brake operation and engine output. The following symptoms may be caused by normal operations: