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 B1014: Program Read Only Memory (ROM) Checksum ErrorCircuit/System Description
The control module runs a program to detect an internal fault when power up is commanded. The module retains a copy of the FLASH application checksum reference value in the FLASH memory. During wake-up the module will compute the FLASH application value and compare it to the FLASH application checksum reference value.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
FLASH application value does not match checksum reference value.
Action Taken When the DTC Sets
The control module will enter boot mode, and only the program FLASH memory function will be available.
Conditions for Clearing the DTC
| • | A current DTC clears when the malfunction is no longer present. |
| • | A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction. |
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Body Control System Description and Operation
Electrical Information Reference
Scan Tool Reference
Refer to Control Module References for scan tool information.
Circuit/System Verification
Verify that DTC B1014 is not set.
| ⇒ | If the DTC is set, perform the setup procedure on the control module. If the DTC resets replace the control module. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for control module replacement, setup, and programming
