B1498

DTC B1498/98 Communication Malfunction (A/C Inverter Local)

DESCRIPTION

Detection Item:

The hybrid vehicle control ECU and w/ motor compressor transmit information to one another via communication line. Compressor control is stopped and the DTC is output if communication information is cut off or abnormal information occurs.

The DTC is also detected if high-voltage power supplied from the w/ converter inverter assembly to the compressor control circuit is shut off.

The output DTC is memorized as previous trouble.

CAUTION:
- Wear electrically insulated gloves and pull out the service plug grip before inspection as procedures may require disconnecting high-voltage connectors. Be sure to carry the removed service plug grip because other workers may install it by mistake.
- Do not touch the high-voltage connectors or terminals for 5 minutes after the service plug grip is removed.

Wiring Diagram:

Step 1:

Step 1 (Continued)-3:

Step 4:

Step 5-6:

Step 6 (Continued)-7:

Step 8-9:

Step 9 (Continued):

INSPECTION PROCEDURE