COMMENTS ON TROUBLE SYMPTOM |
| If communication with all other systems is not possible, there is a high possibility that
there is a malfunction of the diagnosis line. If only the A/C system can not communicate
with the M.U.T.-III, the heater controller assembly (A/C-ECU) may be defective. |
PROBABLE CAUSE |
| Malfunction of the heater controller assembly (A/C-ECU) |