Saturday, July 13, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 524


DTC B2425 1F



- Left Seat Heater Cushion Circuit Intermittent



DTC B2430 04



- Right Seat Heater Cushion Circuit Open



DTC B2430 0A



- Right Seat Heater Cushion Circuit Rate of Change Below Threshold



DTC B2430 0B



- Right Seat Heater Cushion Circuit Current Above Threshold



DTC B2430 0C



- Right Seat Heater Cushion Circuit Current Below Threshold



DTC B2430 0D



- Right Seat Heater Cushion Circuit Resistance Above Threshold



DTC B2430 0E



- Right Seat Heater Cushion Circuit Resistance Below Threshold



DTC B2430 1F



- Right Seat Heater Cushion Circuit Intermittent



Diagnostic Fault Information



Circuit/System Description



When the heated seat function is active, the rear heated seat module (RHSM) supplies battery voltage through the element supply voltage circuit to



the seat heater elements. The RHSM controls the seat temperature by providing a pulse width modulated (PWM) ground through the heated seat



element control circuit to the seat heater elements. The RHSM then monitors the current flow through the heating element and the temperature sensor



rate of change to verify correct operation.



Conditions for Running the DTC



The RHSM must be powered and the heated seat must be enabled.



Conditions for Setting the DTC



B2425 04 or B2430 04



The RHSM does not detect a temperature change within 210 seconds.



B2425 0A or B2430 0A



The RHSM detects that the set point temperature has not been reached within 8.5 minutes.



B2425 0B, B2425 0E, B2430 0B, or B2430 0E

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