Conditions for Clearing the MIL/DTC

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

A current DTC clears and the MIL is turned OFF when the fault is no longer detected after the 3rd consecutive drive cycle.
A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the fault, or does not reoccur after 40 consecutive drive cycles.
A history DTC clears is there is a battery disconnect.

DTC U2104

Step	Action	Yes	No
Schematic Reference: Data Link Connector (DLC) Schematics (A/T) or Data Link Connector (DLC) Schematics (M/T) Connector End View Reference: Master Electrical Component List in Wiring Systems.
1	Did you perform the Diagnostic System Check for the system exhibiting the symptom?	Go to Step 2	Go to Control Module References in Body Control System for the applicable Diagnostic System Check
2	Install the scan tool. With the scan tool, communicate with the BCM, ECM, and TCM. Monitor the DTC information for DTC U2100. Does the scan tool indicate that DTC U2100 sets as either a current or history DTC?	Go to Diagnostic Trouble Code (DTC) List	Go to Step 3
3	Inspect for poor connections at the harness connector of the module that is not communicating. Did you find and correct the condition?	Go to Step 4	Go to Step 5
4	Use the scan tool in order to clear the DTCs. Turn OFF the ignition switch. Wait at least 10 seconds. Turn the ignition ON, with the engine OFF. Retrieve the DTCs from the EBCM, ECM, BCM, and TCM. Does the DTC reset?	Go to Step 2	System OK
5	IMPORTANT: Perform the programming or set up procedure for the replaced control module if required. Replace the control module that is not communicating. Refer to Control Module References in Body Control System for the applicable replacement procedure.Did you complete the replacement?	Go to Step 4	-