Problem with Resistor Pellet Read in Ignition Key
Thread Starter
Drifting
Joined: Nov 1999
Posts: 1,502
Likes: 12
From: Yorktown Heights NY
Problem with Resistor Pellet Read in Ignition Key
Was clearing DTC codes two nights ago, and the next day the car wouldn't start.
Threw a History Code 51 which is resisitor mismatch.
Luckily, I put in a bypass resisitor with hidden switch when I put in my Viper Alarm and auto start since I had the other key's reisitor pellet fry 5 years ago leaving me stranded needing a tow
Waited the mandatory 3 minutes, flipped the switch putting the resisitor in the ignition key read circuit, turned the key and voila, it started instantly
Checked the key pellet and it does show a resisitance of about 37 K ohms, so it's either the alrm relay...doubt it......or the ignition key lock cylinder resistor pellet read contacts...maybe the pellet is worn (too easy)
Anyone else had this happen to them?
Threw a History Code 51 which is resisitor mismatch.
Luckily, I put in a bypass resisitor with hidden switch when I put in my Viper Alarm and auto start since I had the other key's reisitor pellet fry 5 years ago leaving me stranded needing a tow
Waited the mandatory 3 minutes, flipped the switch putting the resisitor in the ignition key read circuit, turned the key and voila, it started instantly
Checked the key pellet and it does show a resisitance of about 37 K ohms, so it's either the alrm relay...doubt it......or the ignition key lock cylinder resistor pellet read contacts...maybe the pellet is worn (too easy)
Anyone else had this happen to them?
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
If your pellet measures over 13k ohms, it is defective as the highest pellet resistance is just under 13k ohms (got the resistance list stored on this computer but I can't find it right now). If you have a spare ign key, measure its resistance.
Navigator
Joined: Mar 1999
Posts: 9
Likes: 0
From: Vicksburg,MS,USA
On my 93, I would turn the key and the starter would not turn over. Waited 15 minutes or so and most of the time it would crank. Left me stranded a few times. Thought it might be the starter, but I had the dealership read the resistor on the key and make new one. It cost $35 for the key versus over $200 for the starter. This cured the problem.
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Originally Posted by RRT vette
I thought the resistance is 0 - 15 ohms? Anyway 37 is too much.
(Key Resistance is in Ohms)
(Pellet Code) (Nominal) (Low) (High)
1 402 386 438
2 523 502 564
3 681 654 728
4 887 852 942
5 1130 1085 1195
6 1470 1411 1549
7 1870 1795 1965
8 2370 2275 2485
9 3010 2890 3150
10 3740 3590 3910
11 4750 4560 4960
12 6040 5798 6302
13 7500 7200 7820
14 9530 9149 9931
15 11800 11328 12292
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
Originally Posted by MikeC4
no, u r thinking of the pellet code, not resistance value
(Key Resistance is in Ohms)
(Pellet Code) (Nominal) (Low) (High)
1 402 386 438
2 523 502 564
3 681 654 728
4 887 852 942
5 1130 1085 1195
6 1470 1411 1549
7 1870 1795 1965
8 2370 2275 2485
9 3010 2890 3150
10 3740 3590 3910
11 4750 4560 4960
12 6040 5798 6302
13 7500 7200 7820
14 9530 9149 9931
15 11800 11328 12292
(Key Resistance is in Ohms)
(Pellet Code) (Nominal) (Low) (High)
1 402 386 438
2 523 502 564
3 681 654 728
4 887 852 942
5 1130 1085 1195
6 1470 1411 1549
7 1870 1795 1965
8 2370 2275 2485
9 3010 2890 3150
10 3740 3590 3910
11 4750 4560 4960
12 6040 5798 6302
13 7500 7200 7820
14 9530 9149 9931
15 11800 11328 12292
Burning Brakes
Joined: Nov 2005
Posts: 848
Likes: 1
From: 1992 LT1 6 speed Cayman Islands
Originally Posted by MikeC4
no, u r thinking of the pellet code, not resistance value
(Key Resistance is in Ohms)
(Pellet Code) (Nominal) (Low) (High)
1 402 386 438
2 523 502 564
3 681 654 728
4 887 852 942
5 1130 1085 1195
6 1470 1411 1549
7 1870 1795 1965
8 2370 2275 2485
9 3010 2890 3150
10 3740 3590 3910
11 4750 4560 4960
12 6040 5798 6302
13 7500 7200 7820
14 9530 9149 9931
15 11800 11328 12292
(Key Resistance is in Ohms)
(Pellet Code) (Nominal) (Low) (High)
1 402 386 438
2 523 502 564
3 681 654 728
4 887 852 942
5 1130 1085 1195
6 1470 1411 1549
7 1870 1795 1965
8 2370 2275 2485
9 3010 2890 3150
10 3740 3590 3910
11 4750 4560 4960
12 6040 5798 6302
13 7500 7200 7820
14 9530 9149 9931
15 11800 11328 12292
Good info
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