Re: How do I clear computer error codes in a trailblazer?
With a scanner, or disconnect the battery for 20 minutes , in which case you may have idle speed problems and need to have an idle relearn done (via scanner)
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PO305 is cylinder #5 misfire. PO014 is Camshaft position fault. The camshaft determines which valves open and when. If the cam is out of position (called "jumped timing"), several bad things can happen. Usually an engine that has jumped time will not start or will run very roughly with little to no power if it does start. Chances of jumped timing are low, but in a high-mileage engine, not impossible. More likely is a faulty cam position sensor or wiring. Misfiring of one or more cylinders is quite likely in this condition. Additionally, once the cause has been corrected and the computer codes reset and cleared, you may very well get an emissions error code, as actual cylinder misfiring (even running out of gas) is notorious for causing emission control, catalytic converter and O2 sensor failures (any code between PO400-PO499).
P060e Control Module Throttle Position sensor, check all voltage and ground inputs to the ECM for an open circuit or high resistance. The computer will clear this code after three consecutive ignition cycles with no failures. Hope this helps out some.
Yes the air bag computer retains fault codes for about 100 cycles without a fault present and resets every time it or a new one is detected. clearing the codes starts the system fresh.
This is a fault in the fan speed sensor circuit. You may need to check the connector or replace this sensor. Remember to have someone clear the computer. Some defects will clear automatically and others need time or a scanner to clear.
I take it that it's not working? 1 thing to keep in mind...if there are any check engine codes stored in the computer, te cruise control will be disabled. When this code is cleared out, the cruise control will work again.
Normally when this happens, your computer has a stored or active check engine light code. If there is a code present, your computer will disable the cruise control feature until the check engine light or code is cleared.
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