Variant Coding
VARIANT CODINGThe HECU is programmed with a variant code based on the vehicle powertrain configuration. This variant code is used to determine the appropriate ESC calculations. Variant code programming should be performed whenever an HECU is replaced.
PROCEDURE OF VARIANT CODING
1. Install a PCM (ECM & TCM)/ESC normally.
2. Connect the scan tool to the data link connector located underneath the dash panel.
3. Select vehicle name.
4. Select ANTI-LOCK BRAKE SYSTEM.
5. Select the variant coding.
6. Follow the next procedure according to the comment
7. Confirm the condition, and then push the "REST".
8. If the procedure is finished, the screen is displayed as shown below.
9. IGN off.
10. IGN on.
11. The variant coding is completed.
CAUTION: If the warning lamp (ESC, EBD, ABS) is illuminated, follow the "Variant coding" again.