The instrument cluster (10849) carries out a display proveout to verify that all warning/indicator lamps and monitored systems are functioning correctly. When the ignition switch (11572) is in the ON position with the engine (6007) off, the following indicators will illuminate:
Testimonial: "How do you go to pinpoint test n? Thanks for the info and answering my post so quickly. I would like to run a test to hopefully pinpoint what I need to fix"
What pin point test "N" tells you to do is find the connector at the PCM that has check engine light control signal wire . Then it says to disconnect that connector from PCM an then take a fused jumper wire from battery + voltage to the control wire for engine light . If it lights the wire is good an PCM is bad . you can find a wiring diagram at http://bbbind.com/free_tsb.html
You don't say what year your ranger is ,so I can't look up diagram for you .
1999 ford ranger xlt 4x4 4.0l v6 245 cid
You can find a wiring diagram athttp://bbbind.com/free_tsb.html
I have a pic of the connector , can't upload it here . Powertrain Control Module (PCM), 4.0L
C111
RH Rear of engine compartment, through safety wall , one connector C111 . pin # two check engine light control circuit . pink with lite green strip . Put battery power to this wire an see if check engine light comes on . If it does you have a PCM problem . If not you have a wiring problem .
Thank you for all the help. I will be working on this this weekend and will let you know what happens. Again I really appreciate all the time and effort you have gone through to help me with this.
No problem , glade to help .
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find a wiring diagram for PCM , PCM turns on the light ,find connector with control wire for mil light , disconnect the connector from the PCM . Jump B+ voltage to control wire , does light work ? If yes you have a PCM problem , If it doesn't light you have an open circuit .
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