For 1990-2009 cars only
Circuit Description
The body control module (BCM) performs a self-test when the ignition is turned on. If the BCM senses an internal error, DTC B1000 is set.
Conditions for Running the DTC
The ignition switch is turned on.
Conditions for Setting the DTC
Any of the following conditions may set this code:
| • | An internal memory error. |
| • | An internal EEPROM checksum error. |
| • | An internal EEPROM write error. |
| • | An internal voltage regulation error. |
Action Taken When the DTC Sets
| • | The SERVICE VEHICLE SOON indicator illuminates. |
| • | The check gauges chime sounds. |
Conditions for Clearing the DTC
| • | A current DTC B1000 will clear when the code setting condition is no longer present. |
| • | A history DTC will clear if the condition is no longer present after 100 ignition cycles with no current codes active during the 100 ignition cycles. |
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
Step | Action | Yes | No |
|---|---|---|---|
1 | Did you perform the Body Control Module Diagnostic System Check? | Go to Step 2 | |
Replace the body control module. Refer to Body Control Module Replacement . Important: Perform the set up procedure for the body control module. Refer to Body Control Module (BCM) Programming/RPO Configuration . Did you complete the replacement? | System OK | -- |
