Circuit Description
The internal fault detection is handled inside the control module. No external circuits are involved.
Conditions for Running the DTC
The control module runs a program to detect an internal fault when power up is commanded. The only requirements are voltage and ground.
Conditions for Setting the DTC
The control module detects an internal checksum error.
Action Taken When the DTC Sets
The microprocessor refuses all additional inputs.
Conditions for Clearing the DTC
| • | The current DTC B1013 will clear when the microprocessor makes a successful write to the EEPROM and check sum maneuver. |
| • | A history DTC B1013 will clear after 100 consecutive ignition ON/OFF cycles if the condition for the malfunction is no longer present. |
Diagnostic Aids
| • | This DTC may be stored as a history DTC with out affecting the operation of the module. If stored only as a history DTC and not retrieved as a current DTC, do not replace the module. |
| • | If this DTC is retrieved as both a Current and History DTC, replace the module. |
Step | Action | Yes | No |
|---|---|---|---|
1 | Preform a Diagnostic System Check on the system exhibiting symptoms. Refer to Control Module References . Did you perform the Diagnostic System Check? | Go to Step 2 | |
2 | Is the DTC received as a current DTC? | Go to Step 3 | Go to Diagnostic Aids |
3 |
Important: Perform the set up procedure for the control module if needed. Replace the control module. Refer to Control Module References . Did you complete the replacement? | System OK | -- |
