Lexus NX: A/C Inverter Malfunction (B1474)
DESCRIPTION
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
B1474 | A/C Inverter Malfunction | A/C inverter malfunction | -
Compressor with motor assembly
-
CAN communication system
| Memorized | - |
CAUTION / NOTICE / HINT
CAUTION:
-
Wear insulated gloves and pull out the service plug grip before inspection as procedures may require disconnecting high-voltage connectors. Carry the removed service plug in your pocket to prevent other technicians from accidentally reconnecting it while you are servicing the vehicle.
-
Do not touch the high-voltage connectors or terminals for 10 minutes after the service plug grip is removed.
PROCEDURE
1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Using the Techstream, check if the CAN communication system is functioning normally.
Click here
Result | Proceed to |
CAN communication system DTCs are not output | A |
CAN communication system DTCs are output | B |
A | | REPLACE COMPRESSOR WITH MOTOR ASSEMBLY |
B | | GO TO CAN COMMUNICATION SYSTEM |
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