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02 Trailblazer Says unknown driver in dash. Help?
Hello everyone! 2 nights ago I had a little too much fun and got my trailblazer into some deep water and it flooded the fuse box under the back seat as well as the intake. I already pulled the plugs and pumped all of the water out and ran a heater on ecu to dry it out.
the thing is! the vehicle's batter i think is shot but when it's on the charger or jumper cables i can start it from the solenoid and it will run for about 5 seconds and then die. Yesterday, I did a security reset and the vehicle started like normal and ran fine but i had to shut it off to replace a cooler line to the trans that was smashed when we pulled the vehicle out. during that time, the battery went dead again and now i'm back to where i started. Only now the trailblazer will not reset again! and I've changed the oil and everything is ready to run except this damn computer won't let me start my engine. I've read a few different ways to reset it so i was just wondering if anyone could help me out.
Please noone give me that line of BS "You have to take it to the dealership" STFU!!! obviously i don't if i had it working yesterday. i'm missing something i just cannot tell what. Thanks!
I had unplugged the ecu from the fuse box when i was drying it out last night and forgot to plug it back in. I plugged it in and now i'm attempting to reset it again.
1 Answer
- Judd0081Lv 58 years agoFavorite Answer
Passkey III Learn procedure:
1. With a master passkey III key, turn ON the ignition, with the engine OFF.
2. Observe the Security telltale, after approximately 10 minutes the telltale will turn off.
3. Turn OFF the ignition, and wait 5 seconds.
4. Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.
5. Be sure the battery is fully charged before doing the procedure (the preferred method is to have a battery charger on the vehicle during the procedure)
6. Clear the message in the DIC, After a repair of the theft system, the BCM will maintain the system fault or DTC as current for seven (7) ignition cycles. This will cause the Service Theft System message to be displayed on the DIC after a repair.
If that doesn't work, there is a way to bypass it.
