DTC U0424-537: Invalid Data Received from HVAC Control Module [10/2014 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes.
4. Check if DTCs related to the air conditioning system (A/C) are output.

   Result

   Result	Proceed to
   DTCs related to A/C are not output.	A
   DTCs related to A/C are output.	B

5. Turn the power switch off.

A 

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY 

(Refer to COMPONENTS [10/2014 - ] )

B 

GO TO DTC CHART (AIR CONDITIONING SYSTEM) 

(Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2014 - 10/2015] or DIAGNOSTIC TROUBLE CODE CHART [10/2015 - ] )