99 Olds Alero remote start problem
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=69424
Printed Date: May 19, 2025 at 1:08 PM
Topic: 99 Olds Alero remote start problem
Posted By: eons891
Subject: 99 Olds Alero remote start problem
Date Posted: December 28, 2005 at 10:27 PM
I installed a Designtech Ready Remote car starter (Model 23927) on my 99 Alero (3.1L V6)that does not have passlock. After connecting all the wires related to the remote start operation I attempted to start the car. It started and ran for a second and then would stop. the unit would continue to try to start the car and then time out eventually. I checked the wiring, the hood pin the whole 9 yards. My first thought was that the voltage on the battery was not coming up fast enough to satisfy the computer since this unit is factory set to run in "no tach" mode. I put my meter on the battey, started the car and it did seem like the voltage did not come up right away. I then thought i should go through and change the factory setting so the unit would use the tach lead to tell if the car was running. This is where i had the problem. The wiring diagram online says the tach lead comes out of the ECM and is violet/white. I can not find this wire. There is a 12 pin connecter on the back of the insturment panel where i figured the tach lead had to come in. I did not see the wire there either. So my questions are, am I on the right track? Could there be a lag in my multimeter that is causing me to think the voltage is coming up slowly? And where can i find the tach lead? A big thanks to anyone who is kind enough to help.
Replies:
Posted By: Chris Luongo
Date Posted: December 28, 2005 at 10:33 PM
I'd be very surprised if that car doesn't have PASSLock II-----the Malibu and Grand Am are they same car, and they do.
When you turn on the ignition, does one of the warning lights on the dashboard read "SECURITY"?
Posted By: Falcon 1
Date Posted: December 28, 2005 at 11:08 PM
I think Chris Luongo may be correct. | Oldsmobile |
| Alero |
| 1999 - 2002 |
| | Remote Starter Wiring Colors and Notes | | Function | Vehicle Color | Location | | Start: | YELLOW | | | Ignition #1: | PINK | IGNITION SWITCH HARNESS* | | Ignition #2: | DK. GREEN | IGNITION SWITCH HARNESS | | Ignition #3: | N/A | | | Accessory: | ORANGE | IGNITION SWITCH HARNESS | | Brake Light: | WHITE | AT SWITCH ABOVE BRAKE PEDAL | | Tach Signal: | VIOLET/WHITE | AT COIL MODULE ON BACK OF ENGINE | | Parking Lights: | BROWN | AT LIGHT SWITCH OR DRIVER'S KICK | | Headlights: | | | | Diesel Glow Plug: | | | | Clutch Bypass Wire: | | | | Notes: | *This vehicle is equipped with GM's Passlock II Anti-Theft Security System. Use Universal Alarm Bypass Module part # 2x402 where X can be any number. | | Alarm and Keyless Entry Wiring Colors and Notes | | Function | Vehicle Color | Location | | Constant +12 Volts: | RED | IGNITION SWITCH HARNESS | | OEM Alarm Disarm: | N/A | | | OEM Horn: | BLACK | STEERING COLUMN HARNESS | | Power Lock: | WHITE | DRIVERS KICK PANEL | | Power Unlock: | SINGLE WIRE SYSTEM | DRIVERS KICK PANEL | | Trunk Release: | BLACK/ WHITE (-) | AT RELEASE SWITCH | | Alarm Input Wire: | LT. BLUE & GRN/BLK (-) | AT BCM ** | | Notes: | **Driver's Door is GREEN/ Black and all Remaining Doors are Lt. Blue. Diode Isolate Both Wires With The Band Facing Away From the Alarm Module. See Note #211. Unlock is 1.5K ohm negative signal. Lock is a negative signal, must use relays or diodes. |
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------------- Do it right the first time, only a doctor can bury his mistakes.
Posted By: duoproductionx
Date Posted: December 28, 2005 at 11:30 PM
how much does that passlock II override cost? my car uses that
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97 Monte Carlo
CDA-9885, PZI Crunch 5 channel,12in MB Quart Premium.
Posted By: jacqueslacombe
Date Posted: December 29, 2005 at 12:10 AM
Ih! the pass lock bypass can cost ( 20 -30 $ )
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cocolaboy
Posted By: robdog1969
Date Posted: December 29, 2005 at 1:10 PM
if you use a 555L from DEI you dont have to use resistors it also is a learning module so in cold weather when resistance might change so wiil the module also used for pass lock one....it comes with verry specific directions
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over 20 years of experience in the 12 volt industry
Posted By: eons891
Date Posted: January 01, 2006 at 1:13 PM
Thanks for all the help. I know this sounds crazy but I am 99% sure this vehicle does not have passlock. There is no light that comes on and says SECURITY. Also, would i have been able to get this far if there were passlock on the vehicle? The car starts it just does not continue to run. I also talked to a service tech at the dealer and he showed me where the tach wire is. I am going to give it a try tomorrow and see what happens. I will post the results.
Posted By: kaezoo
Date Posted: January 01, 2006 at 1:30 PM
Better hold onto that 1% doubt. Passlock isn't an optional feature; every '99 Alero is equipped with it. The Passlock system uses a fuel cut-off; it will cause exactly the symptoms you're describing.
Posted By: Craig3708
Date Posted: January 01, 2006 at 3:18 PM
kaezoo is right, your car definitely has passlock , Every model came with it.
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Craig
Posted By: another-kelly
Date Posted: January 01, 2006 at 8:31 PM
still don't believe the passlock? go get a key cut at wal-mart and try to start the car with it. get the bypass dude
Posted By: kaezoo
Date Posted: January 01, 2006 at 9:28 PM
another-kelly wrote:
still don't believe the passlock? go get a key cut at wal-mart and try to start the car with it. get the bypass dude
Actually, it would work just fine. Passlock systems use a resistance built into the switch, not anything in the key. No special key is needed.
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