Abs Verification Test
ABS VERIFICATION TEST
To avoid possible serious or fatal injury, check brake capability is available before road testing.
- Turn the ignition off.
- Connect all previously disconnected components and connectors.
- Verify all accessories are turned off and the battery is fully charged.
- Verify that the ignition is on, with the scan tool, erase all Diagnostic Trouble Codes from All modules. Start the engine and allow it to run for two minutes and fully operate the system that was indicating the failure.
- Turn the ignition off and wait five seconds. Turn the ignition on and using the scan tool, read DTCs from all modules.
- If any Diagnostic Trouble Codes are present, and perform the diagnostic procedure. If any Diagnostic Trouble Codes are present, and perform the diagnostic procedure. Refer to DIAGNOSTIC CODE INDEX
.NOTE:
For Sensor Signal Plausibility and Pump Motor faults, the ABS Module must verify that the failure conditions are no longer present in the current ignition cycle before it can turn off the failure lamp(s). This may require the vehicle to be driven for several minutes above 15 kmh (9 mph). Once it has been determined that the failure condition is no longer present the lamp(s) will be turned off.
- If there are no DTCs present after turning ignition on, road test the vehicle for at least five minutes. Perform several anti-lock braking stops.
- If there are no DTCs present after turning ignition on, road test the vehicle for at least five minutes.
- Slowly turn the steering wheel from stop to stop.
- Test drive the vehicle by turning the vehicle left or right in a curving manner at a speeds between 10 and 25 km/h (6 and 15 mph).
- Perform several anti-lock braking stops.
- Again, with the scan tool read DTCs. If any DTCs are present, for the diagnostic procedure and troubleshoot the new or recurring DTC. If any Diagnostic Trouble Codes are present, and perform the diagnostic procedure. Refer to DIAGNOSTIC CODE INDEX .
- If there are no Diagnostic Trouble Codes (DTCs) present, and the customer's concern can no longer be duplicated, the repair is complete.
Are any DTCs present or is the original concern still present?
Yes
- Repair is not complete, perform the appropriate diagnostic procedure. If any Diagnostic Trouble Codes are present, and perform the diagnostic procedure. Refer to DIAGNOSTIC CODE INDEX .
No
- Repair is complete.
The Dynamics Sensor is internal to the Anti-lock Brake System (ABS) Module.
If the Anti-lock Brake System (ABS) Module or the Clockspring/Steering Angle Sensor (SAS) were replaced, or if any mounting problems with Clockspring/SAS or ABS Module. The Gear configuration reset, Longitudinal/Lateral G-Sensor calibration and the Pressure Sensor calibration routines must be ran using the scan tool. If not, the ABS indicator will flash continuously with no DTCs.