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OBD1 Check Engine Light Codes

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Old 06-22-08, 10:44 AM
  #16  
Olnick
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Originally Posted by 92ES5sp
That circuit is in the pcm only.
Perhaps a dumb question here but what is the pcm?
Old 06-29-08, 12:58 PM
  #17  
jwiley
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Originally Posted by Olnick
Perhaps a dumb question here but what is the pcm?
not a dumb question. I want to know too. My 92 is throwing 21, 52, and 55.

By the way, you guys/girls are an awesome resource. Hats off to you!
Old 07-16-08, 10:20 PM
  #18  
Olnick
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I took my official jumper (bent paper clip) and connected TE1 and E1. Got a constantly flashing CEL. Didn't time it but seemed to be a 1-second interval. What does that mean?
Old 11-03-08, 01:00 PM
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goldlexus9
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How can I check codes for the ABS light????1994 es 300
Old 11-03-08, 10:20 PM
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CUMan
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Originally Posted by goldlexus9
How can I check codes for the ABS light????1994 es 300
The 94 ES is OBDII, not OBD1. You can get the codes by plugging a code reader into the terminal under the dash. You don't have to jump any terminals.

Many auto parts dealers (Advance, Auto Zone, etc.) will check the codes for you. Just don't tell them your car is a 94 model. Most 94 model cars are not OBDII.
Old 07-08-09, 07:53 AM
  #21  
986ci's
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Originally Posted by Olnick
I took my official jumper (bent paper clip) and connected TE1 and E1. Got a constantly flashing CEL. Didn't time it but seemed to be a 1-second interval. What does that mean?
Mines doing the same thing, just started yesterday, the car drives fine then seems to fall on it face (and flashes a CEL) and then picks back up. Any help here?
Old 04-23-10, 03:54 PM
  #22  
davidv433
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sorry to bump up an old thread, but im reading a code 12 and 55. im confused about the code 55, do i just replace the pcm or the knock sensor circuit. if the knock sensor throws a code, doesnt that mean the engine is bad ?
Old 06-14-10, 10:38 AM
  #23  
tuner79
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I own a 93 GS300. I tried the paper clip jumper on TE1 & E1. But I'm getting a constant flash from the check engine light. No pauses what so ever. Is there anything I can do?
Old 10-19-10, 05:24 PM
  #24  
soarerdd
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i just tried this...but the cel light just blinks very fast, about 5 times per second over and over again. I'm thinking its probably my battery since I can't drive my sc since it wont pass smog with that cel and i cant drive it. so the battery's dead. Trying to jump it didnt solve this either.

Anyone know if a bad battery would make this happen?
Old 11-11-10, 08:23 PM
  #25  
soarerdd
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Originally Posted by llcoolpass
Turns out, according to lexus factory service manual, code 21 is left bank [radiator side] oxygen sensor and the code 28 is the right bank [firewall side] oxygen sensor [ 02 sensor ].
thanks for the info. saved me alot of lost time.
Old 11-13-10, 05:55 AM
  #26  
donbryce
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Originally Posted by Olnick
I took my official jumper (bent paper clip) and connected TE1 and E1. Got a constantly flashing CEL. Didn't time it but seemed to be a 1-second interval. What does that mean?
It means condition is 'normal', ie., no trouble code(s) have been stored.
Old 08-08-11, 06:36 PM
  #27  
crzy000
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anyone know what code 5 is
Old 08-21-12, 02:05 AM
  #28  
559SC400
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Im really new at this but can anyone help me? Im having code 47 51 and 25 on my 92 sc4. Thanks
Old 11-16-12, 12:59 PM
  #29  
Coachaveli
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U guys are gods to the noobs!!! I praise you
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Old 02-13-13, 07:42 AM
  #30  
Jeffb93
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Originally Posted by 92ES5sp
I have a code 55 on a 93 ES300. is a PCM the only fix?
Yes. Is that the only code you have?[/QUOTE]

I have codes 55 and 52 and I also have replaced bolth knock sensors and harness wires are good and actual harness wires are good also and i changed PCM the light comes on after driving a few miles and resets when I shut the car off but still comes on


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