hard brake pedal
01-25-2011, 01:22 PM
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hard brake pedal
have a 1990 lesabre brake pedal is very hard abs light on codes are 12,11,23,22,21,31 and codes will not clear any ideas do not have a manual for this unit arre the ecu a common problem with these
01-25-2011, 07:17 PM
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01-25-2011, 08:49 PM
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Ignore code 12, it'* system normal.
I don't have 11 on my list.
21 tps sensor out of range
22 tps sensor signal voltage low
23 intake air temp sensor out of range, low
31 cam position sensor fault
All kind of unrelated. I would start checking all the wires for damage. I would also inspect the TPS, something could be wrong with it.
As for the hard brake. Check the vacuum line to the brake booster. If that'* off or collapsed you will loose the brake assist, and it will be hard.
I don't have 11 on my list.
21 tps sensor out of range
22 tps sensor signal voltage low
23 intake air temp sensor out of range, low
31 cam position sensor fault
All kind of unrelated. I would start checking all the wires for damage. I would also inspect the TPS, something could be wrong with it.
As for the hard brake. Check the vacuum line to the brake booster. If that'* off or collapsed you will loose the brake assist, and it will be hard.
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