1 Communication With Scan Tool Is Not Possible

PROCEDURE NUMBER & NAME
No. 1: Communication with scan tool is not possible.

PROCEDURE DESCRIPTION
If communication with the scan tool is not possible, the cause is probably a defective diagnosis line or the TCM is not functioning.

PROBABLE CAUSE
- Malfunction of diagnosis line
- Malfunction of TCM power supply circuit
- Malfunction of TCM ground circuit
- Malfunction of TCM





DIAGNOSTIC CHART