Electronic Pull Down Latch
Thread Starter
Junior Member
Joined: Feb 2011
Posts: 5
Likes: 0
From: Portland, Oregon
Car: 1991 Pontiac Firebird
Engine: 3.5L V6
Transmission: Automatic
Electronic Pull Down Latch
Not too long ago my back latch in my '91 firebird stopped opening via the internal switch and even when it's opened manually with my key it latches shut but wont pull down. The road noise is getting old and when it rains or i get the car washed sometimes water comes in and once the back well even filled up a bit. I also have a pair of subs that i am eager to install and this puts me at risk for water damage and theft, anyone have any input on what the problem is and how i can fix it? If its just the relay or the motor lemme know cuz i can do that no problem.
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 12
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Flipping His Lid
First visually check the ACC and LID fuses.
Then using a voltmeter or test light (the type for testing for voltage, not a continuity tester) probe both sides of each fuse.
Is there power on all 4 places?
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
How bout those too scared to drive without headlights in the daytime
and the ones that need headlights for a little rain
.
Then using a voltmeter or test light (the type for testing for voltage, not a continuity tester) probe both sides of each fuse.
Is there power on all 4 places?
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
How bout those too scared to drive without headlights in the daytime
and the ones that need headlights for a little rain.
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 12
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Flipping His Lid
Make sure the ground wire for it is making good ground contact.
Then probe for power at the dark blue wire at the 4 wire connector that plugs into the unit.
There needs to be power there regardless of the igy key position etc.
If there is power there, disconnect power from the unit, then disconnect the 4 pin connector, then using an ohmmeter probe between where the dark blue wire connected, and where the brown wire connected, and note the reading.
Now reverse the ohmmeter probes on those contacts, and note the reading.
On those 2 readings one should be higher than the other.
If you get infinity both readings, either the latch sensing diode is bad, or the motor is bad, or there is a bad connection to it inside the unit.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
How bout those too scared to drive without headlights in the daytimeand the ones that need headlights for a little rain
.
Then probe for power at the dark blue wire at the 4 wire connector that plugs into the unit.
There needs to be power there regardless of the igy key position etc.
If there is power there, disconnect power from the unit, then disconnect the 4 pin connector, then using an ohmmeter probe between where the dark blue wire connected, and where the brown wire connected, and note the reading.
Now reverse the ohmmeter probes on those contacts, and note the reading.
On those 2 readings one should be higher than the other.
If you get infinity both readings, either the latch sensing diode is bad, or the motor is bad, or there is a bad connection to it inside the unit.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
How bout those too scared to drive without headlights in the daytime
and the ones that need headlights for a little rain.
Thread Starter
Junior Member
Joined: Feb 2011
Posts: 5
Likes: 0
From: Portland, Oregon
Car: 1991 Pontiac Firebird
Engine: 3.5L V6
Transmission: Automatic
Re: Flipping His Lid
i appreciate the help, ill make sure to check that or have it checked but unfortunately i have very little equiptment available to me and i cant run those checks myself at home :/ though given the chance i would, gladly. ill see if i can go by my friends shop and use his equiptment. Anythin else for if the readings arent infinity? if its not a hastle of course
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 12
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Good Reading Material
If the readings are OK the unit should work at least as far as pulling the lid down therefore you can take those readings and report.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If You’re Passed By Your Own Tire On The Track, It’s Time For A Pit Stop
.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If You’re Passed By Your Own Tire On The Track, It’s Time For A Pit Stop
.
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