Self-Diagnosis Procedures

With the ignition switch OFF, connect the diagnostic scan tool to the data link connector in the engine compartment.

Fig 1: Connecting Scan Tool To Data Link Connector
Turn the ignition switch ON, then check diagnostic trouble code(s).
If a diagnostic trouble code(s) is displayed, check for cause by using number on diagnostic trouble code. Repair as necessary.
After repair, perform the AFTER-REPAIR PROCEDURES to verify that there are no remaining diagnostic trouble codes.

NOTE: If diagnostic scan tool is not available, check the blinking code by the ABS warning lamp.

Ground the pin "h" and "s" of data link connector in the engine compartment at ignition switch OFF.

Fig 2: Identifying Data Link Connector Terminals
Turn ignition switch ON.
Diagnostic trouble codes will be displayed beginning with the lowest code number first.
After all the memorized diagnostic trouble codes have been displayed, the process will repeat and display the lowest number code first.
For (Blinking code Example: 21) , see Fig 3 .

Fig 3: Checking Codes Using ABS Warning Light
1. 0.1 Seconds
  - The ABS warning lamp illuminates for 0.1 seconds ignition is switch ON. This does not indicate an error code.
2. 4 Seconds
3. 0.5 Seconds
4. 1.5 Seconds
5. 2.5 Seconds or 4 Seconds
  - The OFF state between diagnostic trouble code display cycles is 4 seconds.
  - When several diagnostic trouble codes are displayed, the OFF state between codes is 2.5 seconds.
6. 0.25 Seconds
  - If the system is operating normally (no malfunction) the warning lamp will blink once every 0.25 second.
Normal code