For 1990-2009 cars only
Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category |
DTC Descriptor
DTC B101D 00: ECU Hardware Performance, EEPROM FailureCircuit/System Description
The secondary information centre (SIC) interface module uses GMLAN to communicate between the drivers information centre (DIC), infotainment unit, engine control module (ECM) and the body control module (BCM). DTC B101D indicates that the SIC has an internal fault and is not affected by any external circuits.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts
Conditions for Setting the DTC
When the SIC has recognised an internal fault.
Action Taken When the DTC Sets
This code will set as current when the SIC recognises an internal fault or fails to communicate with the BCM.
Conditions for Clearing the DTC
| • | The condition for setting the DTC is no longer present. |
| • | The DTC can be cleared using a scan tool. |
Reference Information
Schematic Reference
Connector End View Reference
Scan Tool Reference
Circuit/System Testing
- Ignition OFF, wait for 30 seconds.
- Ignition ON, using the scan tool, select the DTC display function.
- Ignition ON, using the scan tool view the Current DTCs.
| ⇒ | If DTC B101D is set to current, clear all DTCs. |
| ⇒ | Verify that no other DTCs are set. |
| ⇒ | If DTC B101D is set to current replace the SIC interface Module. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for SIC replacement, setup and programming. |
