DTC B1000 RFA Internal Fault (Self Test Failed). Cadillac DeVille 1998

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 1998 🢒 DeVille 🢒 Body and Accessories 🢒 Keyless Entry 🢒 DTC B1000 RFA Internal Fault (Self Test Failed)

The remote function actuator (RFA) module performs a self-test on its internal memory when the ignition is cycled to ON.

The remote function actuator (RFA) module will set this DTC if the module fails the internal ROM to RAM write test.

•	A DTC B1000 is stored in the remote function actuator (RFA) module memory.

•	No driver warning message is displayed for this DTC.

•	The RFA module passes the self test at power up.

•	The ignition must be cycled from OFF to ON for this DTC to change from current to history.

•	This DTC will stay current in the memory until the RFA module receives a passed test message after the power up self-test.

•	The DTC will show a test not passed since last cleared on the scan tool.

Step	Action	Value(s)	Yes	No
1	Was the Remote Keyless Entry Diagnostic System Check performed?	--	Go to Step 2	Go to Diagnostic System Check - Remote Keyless Entry
2	Clear all DTCs. Turn the ignition switch off. Turn the ignition switch on. Is DTC B1000 still present?	--	Go to Step 3	Go to Diagnostic System Check - Remote Keyless Entry
3	Replace the remote function actuator (RFA) module. Refer to Remote Control Door Lock Receiver Replacement . Is the repair complete?	--	Go to Diagnostic System Check - Remote Keyless Entry	--

Step

Action

Value(s)

Yes

Was the Remote Keyless Entry Diagnostic System Check performed?

Is DTC B1000 still present?

Replace the remote function actuator (RFA) module. Refer to Remote Control Door Lock Receiver Replacement .

Is the repair complete?