B1007

CIRCUIT DESCRIPTION
The EEPROM write error detection is handled inside the control module. No external circuits are involved.

CONDITIONS FOR RUNNING THE DTC
The module runs the program to detect an EEPROM write error. The only requirements are battery positive voltage and ground. This program runs even if the battery positive voltage is out of the valid operating range.

ACTION TAKEN WHEN THE DTC SETS
The microprocessor tries to write to the memory location 3 times, if the write is not accomplished the code is set.

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.

DIAGNOSTIC AIDS

IMPORTANT: The DIM must be replaced if this DTC is retrieved from the DIM as either a current or history DTC.

For modules other than the DIM:
^ This DTC may be retrieved as a history DTC without affecting the operation of the module. If the DTC is retrieved 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.

TEST

Steps 1-4: