GM Service Manual Online
For 1990-2009 cars only

Object Number: 106994  Size: SF
Cell 10: IGN SW, HTDST LR, HTDST RR, HTDST LF, and HTDST RF Fuses
Cell 50: Class Serial Data Line (1 of 2)
Cell 14: G301

Circuit Description

The RKE module runs this internal self-test at power up. This test will only be run if B1982--Battery voltage high or B1983--Battery voltage low are not current. This DTC will set as a current DTC only but will show up as test not passed since last cleared on the scan tool.

Conditions for Setting the DTC

The RKE module will set this DTC if it fails the internal Read Only Memory (ROM) to Random Access Memory (RAM) write test.

Action Taken When the DTC Sets

Stores a DTC B1000 in the RKE current memory.

No driver warning message will be displayed for this DTC.

Conditions for Clearing the DTC

The RKE module will clear this DTC after a passed test message is received after the power up self-test.

Diagnostic Aids

This DTC will stay in memory until it 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. If this DTC will not clear, replace the RKE module.

Test Description

The numbers below refer to steps on the diagnostic table:

  1. Perform the Remote Keyless Entry Diagnostic System Check before diagnosing DTC B1000.

  2. This step is to attempt to clear the DTC.

Step

Action

Value(s)

Yes

No

1

Was the Remote Keyless Entry Diagnostic System Check preformed?

--

Go to Step 2

Go to Diagnostic System Check - Remote Keyless Entry

2

  1. Clear all DTCs. Refer to Clearing DTCs .
  2. Turn the ignition switch to OFF.
  3. Turn the ignition switch to ON.

Is DTC B1000 still present?

--

Go to Step 3

Go to Diagnostic System Check - Remote Keyless Entry

3

Replace the RKE module.

Refer to Remote Control Door Lock Receiver Replacement .

Is the repair complete?

--

Go to Diagnostic System Check - Remote Keyless Entry

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