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1.

Replace battery sensor.

2.

IG "OFF".

3.

Connect GDS to Data Link Connector(DLC).

4.

Clear DTC and Test-drive under enable conditions above-mentioned.

5.

Does the GDS show DTC "P2502"?

	▶ Substitute with a known - good PCM/ECM and check for proper operation. If the problem is corrected, replace PCM/ECM and go to "Verification of Vehicle Repair" procedure.
	▶ Substitute with a known - good battery sensor and check for proper operation. If the problem is corrected, replace battery sensor and go to "Verification of Vehicle Repair" procedure.