ANTI-LOCK BRAKE SYSTEM (ABS) 5A4-17 Tech 2 Data Display Use the Tech 2 data Values only after the ABS Diagnostic System Check has been completed, no DTC(s) were noted, and you have determined that the on-board diagnostics are functioning properly. Tech 2 values from a properly-running engine may be used for comparison with the engine you are diagnosing. Special Function There are 12 different menus available for this test. The state of each circuit can be tested by using these menus. Especially when DTC cannot be detected, a faulty circuit can be diagnosed by testing each circuit by means of these menus.
Even when DTC has been detected, the circuit tests using these menus could help discriminate between a mechanical trouble and an electrical trouble. In all cases test condition; Engine stops with the key turned to the “ON” position. To be more specific, the test is conducted with the brake pedal stepped on after stepping once and releasing. Engine: Stop Ignition SW: ON Brake Pedal: ON-OFF-ON If the Ignition SW was turned OFF or communication was lost, make sure to apply the brake pedal ON-OFF- ON once again and then continue the test. ABS Data Ignition SW is “ON” position. (For example) Actuator Test F0: F1: F2: F3:
ABS Relay Test Return Pump Relay Test Front Left Solenoid Valve Test Front Right Solenoid Valve Test Rear Left Solenoid Valve Test Rear Right Solenoid Valve Test ABS Check Light Test Exhaust Brake Cut Test F4: F5: F6: F7: