I cant find the wire that keeps memory alive after car is shut off. There are 3 clips with 3 to 4 other yellow wires (in my manual the wire is a yellow). When the van is turned off emissions codes get reset IE cat,egr,o2, I/M readiness test not complete p1000 and p0603- KAM failure new battery, all pos's and gnd's cleaned, no blown fuses, no mods. Thank you
Images for KAM circuit wire color codes
Wiring Color Codes : Color Codes - Electronics Textbook
www.allaboutcircuits.com > Textbook > Vol. V - Reference > Color Codes
Wiring for AC and DC power distribution branch circuits are color coded for identification of individual wires. In some jurisdictions all wire colors are specified in ...
What Do Electrical Wire Color Codes Mean? ' Angies List
Ford Ranger/Explorer/Mountaineer 1991-1999
Clearing Codes
CONTINUOUS MEMORY CODES
These codes are retained in memory for 40 warm-up cycles. To clear the codes for the purposes of testing or confirming repair, perform the code reading procedure. When the fault codes begin to be displayed, de-activate the test by either disconnecting the jumper wire (meter, MIL or message center) or releasing the test button on the hand scanner. Stopping the test during code transmission will erase the Continuous Memory. Do not disconnect the negative battery cable to clear these codes; the Keep Alive memory will be cleared and a new code, 19, will be stored for loss of PCM power.
KEEP ALIVE MEMORY
The Keep Alive Memory (KAM) contains the adaptive factors used by the processor to compensate for component tolerances and wear. It should not be routinely cleared during diagnosis. If an emissions related part is replaced during repair, the KAM must be cleared. Failure to clear the KAM may cause severe driveability problems since the correction factor for the old component will be applied to the new component.
To clear the Keep Alive Memory, disconnect the negative battery cable for at least 5 minutes. After the memory is cleared and the battery reconnected, the vehicle must be driven at least 10 miles so that the processor may relearn the needed correction factors. The distance to be driven depends on the engine and vehicle, but all drives should include steady-throttle cruise on open roads. Certain driveability problems may be noted during the drive because the adaptive factors are not yet functioning
471 views
Usually answered in minutes!
×