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1994 850 Remote Receiver will not enter Program Mode

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.
1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
a061469
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1994 850 Remote Receiver will not enter Program Mode

Post by a061469 » Tue Mar 26, 2019 10:27 am

I have a 1994 Volvo 850 Non-turbo Wagon. I have one remote that locks and unlocks all doors and the rear wagon door. However, I would like to program an extra remote to lock and unlock the vehicle but cannot get the wireless remote receiver to enter program mode. I’ve tried the procedure of locking the doors and turning the ignition 5 times from off to the number 2 position and also from the number 1 position to the number 2 position and then pressing the lock or unlock button on the remotes but they never program. It doesn't look like the receiver is entering program mode because when I follow the procedure and don’t push a button on the remote that works, that remote keeps working. If the receiver did enter program mode then the working remote should stop working if I don’t press a button on that remote. All fuses check good and no error codes. I have a feeling that it has something to do with my alarm system. I noticed that the alarm light on the middle of the dash never comes on whether the vehicle is locked or unlocked so I’m assuming that my alarm is inoperable. I would greatly appreciate any advice on how to get the receiver to enter programming mode.



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RickHaleParker
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Re: 1994 850 Remote Receiver will not enter Program Mode

Post by RickHaleParker » Tue Mar 26, 2019 11:37 am

You are using the wrong key positions.

Position 0 = OFF
Position I = Intermediate (AKA ACCessories)
Position II = ON
Position III = Start.

1. Enter vehicle and close all doors.

2. Insert key into ignition and turn from OFF (0) to ON (II) position five times within ten seconds ending in the ON position.

3. Within 30 seconds, Press the [LOCK] or [UNLOCK button] on each remote (including working ones), one remote at a time. All remotes must be programmed within 30 seconds of completing step 2.

4. Turn Ignition to OFF, Remove key and test all remotes.


Platform: P80 1998 C70, B5234T3, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
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Re: 1994 850 Remote Receiver will not enter Program Mode

Post by erikv11 » Tue Mar 26, 2019 2:49 pm

As your post indicates you seem to understand you are programming the car (module), not programming the remotes, that's a key realization that stumps a lot of people. You're also trying the correct key positions (zero to two); basically I'd keep trying. But with the doors unlocked, I didn't do the google but I don't remember ever locking them. Before you start lock and unlock the doors a couple cycles with the key in the driver's door lock.

The programming mode can be finicky and unpredictable. Since the system is working now with one remote my suggestion is to follow the instructions to the letter (definitely close and unlock the doors) and try a few more times. In practice I sometimes just have to put the car in program mode and then click like crazy until the car finally responds, then I can quickly go to the next remote and click click click, the second one is usually easier.

I programmed both of my 850's to the same remotes, there are pros and cons to that approach ...


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 205k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 275k
'06 S60 R, 155k
gone: '96 NA 850 210k, '98 NA V70 182k

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Re: 1994 850 Remote Receiver will not enter Program Mode

Post by a061469 » Wed Mar 27, 2019 7:01 am

Thanks Rick for clarifying the procedure, however, I have used it exactly as posted to no avail.
Thanks Erik for your suggestions, I'll try them today.
Do your alarms work on your vehicles? Does the alarm light ever illuminate? I'm wondering if somehow the alarm system ties into the receiver and is preventing the receiver from entering program mode.
Thanks Guys



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Re: 1994 850 Remote Receiver will not enter Program Mode

Post by RickHaleParker » Wed Mar 27, 2019 3:53 pm

This has worked for another on a 95 850. Worth a try.

1. Put the key in the drivers door lock.
2. Unlock and lock the door five times, leave the door locked. Alarm light on dash goes steadily on.
3. Push one of the buttons on the remote and it will get programmed to your car.


Platform: P80 1998 C70, B5234T3, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

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Re: 1994 850 Remote Receiver will not enter Program Mode

Post by a061469 » Fri Mar 29, 2019 8:53 pm

Well, thanks for the suggestions but unfortunately nothing has worked.
The good news is I think my alarm works now. I noticed someone had unplugged the hood latch sensor, so I hooked it back up and now the alarm light on the dash will light. It's off when the vehicle is unlocked and when I lock it the light will go on steady for about 8 seconds then starts blinking a single blink about every 4 seconds while locked.
The bad news is that the one remote that was working properly now no longer works. I guess sometime during the 20 or 30 tries, it must have gone into program mode enough to lose the pairing but not enough to pair any of the remotes, very strange and irritating. I've tried many different methods, doors locked and unlocked, and the 5 times off and on with the ignition and drivers side door. I don't know if the 94 model alarm light means anything during programming but I thought I'd let you know what mine does. When the doors are unlocked and I do the ignition procedure the alarm light just stays off during the entire procedure. When I manually lock the vehicle from the inside pushing down on the lock/unlock knob, again the light stays off during the entire procedure. However, if I wind down the window and reach out and use the key to lock the drivers side door from the outside, then the alarm light will light and stay on for about 8 seconds and then starts blinking a single blink every 4 seconds during the procedure and after. I thought maybe it would blink differently during the programming but it doesn't. Same blinking whether it's locked while I'm performing the procedure or just locked. Anymore suggestions? Do you have any idea what would happen if I unplugged the receiver and plugged it back in? I guess if everything else fails I might as well try. Thanks



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Re: 1994 850 Remote Receiver will not enter Program Mode

Post by jreed » Sat Mar 30, 2019 6:14 am

One thing that might be helpful to check is the tailgate door sensor circuit to make sure that it's working normally. I think I read that if the switch or wires are not working, then the car won't enter program mode. Some people have reported cracked insulation on the wires in the tailgate hinges. Good luck!


1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94

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a061469

Re: 1994 850 Remote Receiver will not enter Program Mode

Post by a061469 » Sat Mar 30, 2019 8:55 am

I know the rear tailgate locks and unlocks but I don't know if the sensor necessarily works. I have had some issues with the tailgate closing properly in the past, and I just noticed that I can't manually lock and unlock it with the key anymore because the key cylinder completely fell out, just a round hole where the cylinder used to be. Can you unplug or jumper the sensor plug to fool it into thinking the alarm sensor is working properly? At least long enough to program the remote. I don't really care if the alarm stays operational anymore, just long enough to program the remote. Thanks



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Re: 1994 850 Remote Receiver will not enter Program Mode

Post by a061469 » Sat Mar 30, 2019 10:06 am

I thought I knew where the connector was for the tailgate sensor but now I'm not sure. Do you know where the sensor is? Is the white connector with the red wrap on the wire the connector for the alarm sensor?
Attachments
Rear Tailgate.jpg



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Re: 1994 850 Remote Receiver will not enter Program Mode

Post by jreed » Sun Mar 31, 2019 6:37 am

The interior lighting circuit diagram shows the wagon tailgate light wires are red and blue/brown and the wagon tailgate switch wires are blue/brown and black.
Volvo 850 interior lighting circuit.pdf
Interior lighting circuit diagram Volvo 850
(70.73 KiB) Downloaded 8 times
The anti-theft circuit diagram shows the tailgate lock wires are also blue/brown and black.
Volvo 850 antitheft circuit.pdf
Anti-theft circuit diagram Volvo 850
(71.71 KiB) Downloaded 5 times


1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94

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