Seat belt locked , revisited
08-24-2012, 06:34 PM
#1
Seat belt locked , revisited
Ive had the seat belt solinoid lock problem on my '99 just started last couple days ago after I had put new brake pads on my front
From the SCTM under front seat center ,I jumped a wire from the Pink(bat power) or DK/Bl(ign/acc on) wire to the drivers side Orange/BK and that finaly released the drivers belt solinoid
Was there a good final bypass fix for this problem ?
'
Best solution I understand is splice a hard wire from the DK(ign/acc on) to the Orange/BK for the driver side to Bypass the SCTM
Wire codes
Also was there a fix to keep the seatbelt dash light off?
From the SCTM under front seat center ,I jumped a wire from the Pink(bat power) or DK/Bl(ign/acc on) wire to the drivers side Orange/BK and that finaly released the drivers belt solinoid
Was there a good final bypass fix for this problem ?
'
Best solution I understand is splice a hard wire from the DK(ign/acc on) to the Orange/BK for the driver side to Bypass the SCTM
Wire codes
The control module is located under the center seat on your 99
My book says it has a 13 pin plug
cav 7 is the left side seatbelt solenoid control circuit R7 18 OR/BK = wire color orange with black trace.
Cav 8 is the right side seatbelt solenoid circuit R18 OR/RD = orange with red trace
Pin 6 = ground Bk/lg
pin 5 = fused batt + pink
pin 4 DB fused ignition switch output (run-acc)
pin 2 left door ajar switch sense TN
pin 3 right door ajar switch sense TN/RD trace
11 is the seat belt control timer module sense LG/BK trace
13 is another ground BK/PK
1,9,10,12 are not used
My book says it has a 13 pin plug
cav 7 is the left side seatbelt solenoid control circuit R7 18 OR/BK = wire color orange with black trace.
Cav 8 is the right side seatbelt solenoid circuit R18 OR/RD = orange with red trace
Pin 6 = ground Bk/lg
pin 5 = fused batt + pink
pin 4 DB fused ignition switch output (run-acc)
pin 2 left door ajar switch sense TN
pin 3 right door ajar switch sense TN/RD trace
11 is the seat belt control timer module sense LG/BK trace
13 is another ground BK/PK
1,9,10,12 are not used
08-27-2012, 12:52 PM
#4
Registered User
Bypassing the module will prevent your belts from locking and saving you in an accident. It wouldn't be any more effective than simply not using the belt any more.
The reason they went to the electric lock is this. When they went to the quad cab design, they designed the belt retractors into the seats, so they wouldn't interfere with passenger entry into the cab. With the belts mounted in the seat, they were unable to use the traditional pendulum style belt locking mechanism, because of the different angles people would recline their seats to, so they used an electric locking retractor with sensors to measure deceleration and lock the belt when necessary. There isn't anything that can be done to bypass this feature and still use the belts as a safety device.
The reason they went to the electric lock is this. When they went to the quad cab design, they designed the belt retractors into the seats, so they wouldn't interfere with passenger entry into the cab. With the belts mounted in the seat, they were unable to use the traditional pendulum style belt locking mechanism, because of the different angles people would recline their seats to, so they used an electric locking retractor with sensors to measure deceleration and lock the belt when necessary. There isn't anything that can be done to bypass this feature and still use the belts as a safety device.
08-27-2012, 02:45 PM
#5
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That's not entirely correct. I've seen hundreds of 98-02 2500/3500 belt retractors out of the seats.
Some have wiring plug on the retractors, some don't.
It may be a year thing, It may be an option thing. I don't know for sure.
BUT, I have a 99 model with plugs on the retractors, and several 01 model retractors without.
I always thought that module under the console was for the light in the dash.
Assumed it went to the belt LATCH instead of the retractor.
Light in dash went off when the belt was "latched".
Then again, they (98-02) don't all have a module under the console either.....
Just not sure if the differences has to do with options, or year model
Some have wiring plug on the retractors, some don't.
It may be a year thing, It may be an option thing. I don't know for sure.
BUT, I have a 99 model with plugs on the retractors, and several 01 model retractors without.
I always thought that module under the console was for the light in the dash.
Assumed it went to the belt LATCH instead of the retractor.
Light in dash went off when the belt was "latched".
Then again, they (98-02) don't all have a module under the console either.....
Just not sure if the differences has to do with options, or year model
Last edited by Redlinear; 08-27-2012 at 02:55 PM. Reason: correction
08-27-2012, 08:03 PM
#6
After '99 they stopped useing the solenoid lock on the belt retractor, problematic Stupid design.
The Retractor with the solenoid lock, also locks by enertia, just like the retractors with out the solenoid.
So, Bypassing the module will NOT prevent your belts from locking.
Redliner, Do you have any retractors with out the solenoid that you would part with?
The Retractor with the solenoid lock, also locks by enertia, just like the retractors with out the solenoid.
So, Bypassing the module will NOT prevent your belts from locking.
Redliner, Do you have any retractors with out the solenoid that you would part with?
08-27-2012, 08:10 PM
#7
Ive been trouble shooting the diagnostic info for the retractors and SCTM. My Retractor solenoids are within the 50-60 ohm range so they are ok.
Still messing with door switches and SCTM diagnosis.
Some times my belt is released some times it is stuck locked. Its working Ok right now......
After letting the truck sit with the windows down doors closed in order to check the belts lock after the timed 30 min. Some times they dont even lock at all. Other times the drivers side is locked with the door open. So Im not sure if its just a bad SCTM or what
.
Still messing with door switches and SCTM diagnosis.
Some times my belt is released some times it is stuck locked. Its working Ok right now......
After letting the truck sit with the windows down doors closed in order to check the belts lock after the timed 30 min. Some times they dont even lock at all. Other times the drivers side is locked with the door open. So Im not sure if its just a bad SCTM or what
.
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08-27-2012, 10:28 PM
#8
Registered User
That's not entirely correct. I've seen hundreds of 98-02 2500/3500 belt retractors out of the seats.
Some have wiring plug on the retractors, some don't.
It may be a year thing, It may be an option thing. I don't know for sure.
BUT, I have a 99 model with plugs on the retractors, and several 01 model retractors without.
I always thought that module under the console was for the light in the dash.
Assumed it went to the belt LATCH instead of the retractor.
Light in dash went off when the belt was "latched".
Then again, they (98-02) don't all have a module under the console either.....
Just not sure if the differences has to do with options, or year model
Some have wiring plug on the retractors, some don't.
It may be a year thing, It may be an option thing. I don't know for sure.
BUT, I have a 99 model with plugs on the retractors, and several 01 model retractors without.
I always thought that module under the console was for the light in the dash.
Assumed it went to the belt LATCH instead of the retractor.
Light in dash went off when the belt was "latched".
Then again, they (98-02) don't all have a module under the console either.....
Just not sure if the differences has to do with options, or year model
08-28-2012, 09:59 AM
#9
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Join Date: Apr 2006
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After '99 they stopped useing the solenoid lock on the belt retractor, problematic Stupid design.
The Retractor with the solenoid lock, also locks by enertia, just like the retractors with out the solenoid.
So, Bypassing the module will NOT prevent your belts from locking.
Redliner, Do you have any retractors with out the solenoid that you would part with?
The Retractor with the solenoid lock, also locks by enertia, just like the retractors with out the solenoid.
So, Bypassing the module will NOT prevent your belts from locking.
Redliner, Do you have any retractors with out the solenoid that you would part with?
I realize that's kinda vague, but, that should allow a person plenty of options.
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