Inspection Using ABS Warning Light
On-Board Diagnosis SystemInspection by diagnostic test mode
Outline
^ The ABS/TCS control unit contains self-diagnostic and memory functions to detect and indicate present and past failures.
Read and note the diagnostic indications by using the SST, and take action according to the Diagnostic Trouble Code Table.
^ The ABS/TCS CU has a nonvolatile memory. Diagnostic trouble codes are not erased if the battery is disconnected. The memory should be cleared when servicing is finished.
Inspection using ABS warning light
1. Connect the TBS terminal to GND at the data link connector by using a jumper wire.
2. Start the engine.
3. After the warning light illuminates for three seconds, the warning light indicates diagnostic trouble code (s). In this case, if the TCS OFF/warning light illuminates, the diagnostic trouble code(s) is indicating a TCS present failure. If the TCS OFF/warning light flashes the same pattern as the ABS warning light, it is indicating a past failure.
However, if a present failure exists in the ABS, the ABS warning light stays on and does not display diagnostic trouble codes. In this case, the SST must be used to display diagnostic trouble codes.
4. Read and note any code (s) and check for the causes by referring to the diagnosis chart.