Drive Cycle (Code)
#1
#2
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Yes , it's in some document somewhere as I saw it before or in someone with more experience head . Involves throttle and load range over a course of time . Some codes or flags on flight instruments are inhibited by design and won't show until conditions are satisfied . With the ABS/Traction control it is the velocity of 12.5 MPH . Do you have the code number ?
Last edited by Lady Penelope; 09-28-2017 at 10:17 AM.
#3
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My codes were 1191 1192 1185 1186. I replaced all four o2 sensors. Before replacing them, the light would come back on after a minute after I had cleared the codes. Now, I have started the car as mentioned many times without the light. That was why I was asking about the actual drive cycle.
Sincerely appreciate your help.
Richard
Sincerely appreciate your help.
Richard
#4
#5
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P1186: HO2S heater circuit short circuit – both upstream sensors
P1191: HO2S heater circuit open circuit – both downstream sensors
P1192: HO2S heater circuit short circuit – both downstream sensors
For all the above, the monitoring condition is Engine idle <1000 rpm for >3 minutes, 20 seconds. If the fault persists, the code will reset after 2 'trips' (repetitions of the monitoring condition).
It sounds like the faults have been cleared by replacement of the sensors. If it had been a harness or connector fault, the codes would have reset.
Graham
#6