learn to push DTC Reset button to clear all stored memory stored DTC errors.
there are only 3 kinds of errors (DTC all) + permanents. see end.
- live and real ( means IT IS FAILING NOW hard)
- live and intermittent ( painful but must be fixed) DTC code huge clue.
- or old codes stored in memory.
if it come back in later, that is hard failure.
hard failures are real and can not be cleared. and kept cleared
driving. far.
in 2010 there is this new rule. for some errors
And this is the important part: Driven 200 miles and have 15 Warm Up cycles since the last time the DTC's codes were cleared.
some error self clear , in 1 second flat like CMP sensors errors.
but not EVAP, it will not even start the test until the fuel tank is partly low,.
The O2 sensors, heaters love to burn out,
mine read 0.5ohms good. using DMM meter set to opens
02 sensor in hand or unplugged. (FSM words and true)
the PC detects heater bad because the heater current is now zero or way way off spec. as in BAD.
when bad the DTC keeps coming back, as OBD2 , all do.
learn to use the DTC clear button in the scan tool.
Innova 5160 is mine.
The best way to get help is post all DTC errors
seen and todays cars be sure to have tool made 2007 up
that states in the book, Can-bus network certified.
you can not clear live errors
well, sure if it takes 15 miles driving, sure it is real.
many codes (they are tests) take awhile to complete.
some are instant others take miles of driving.
EGR tests, EVAP tests. are slow.
P042x codes CAT slow, takes a long time to complete.
in PR of California
has
permanent codes that can be ignored
https://www.bar.ca.gov/obd-test-reference#PDTC
this is deep memory stored false (now) codes.
it is for finding intermittent code/problems. (I'd call it history memory that can not be erased)
Each car made , find recalls and TSB notices to see if
there are free fixes for DTC that lie. yes some do.
the above list shows them., for dodge by year.
