QuestionQUESTION: I have a Cirrus that will not start. It worked last week and all of a sudden it will not start. I tryed turning the key on and off three times and the check engine light goes off but the abs light stays on and pulsates 23 times and then 51 times. Is that telling me something.
ANSWER: Hi Darwin,
I am not familiar with that flashing of the abs as having any relevance. The abs controller is separate from the powertrain controller and will give codes only via the data link connector socket under the dash and a plug-in code reader.
When you did the key turning did you do: on-off-on-off-on and leave ON, doing that in 5 seconds or less elapsed time? The check engine light should stay on and then begin to flash, pause, flash, etc. At least it should flash 5 times, pause, and again 5 times, as that confirms that it has done the code readout and that it is completed. If it didn't do that then we want to check the power to the computer. Do you have a voltmeter?
When you turn the key to the 'on' position and leave it there do you hear the fuel pump in the tank run for about 1 second?
Have you tried to test for spark?
Let me know the answers to these questions.
Roland
PS Please 'rate' my answer and where you see the question about a nomination for me to be volunteer of the month consider giving a 'yes'. Thank you
---------- FOLLOW-UP ----------
QUESTION: So we tried to recive data from the control modular and unable to link to modular. check engine light goes off when key is on for a few seconds. 9 volts are coming out of the socket under the dash. yes we can hear the fuel pump, unhucked fuel line at engine turned key on fuel shoting out fuel pump seems to be good. changed cap and rotor, 3 spark plugs, had spark but it might be weak spark.
AnswerHi Darwin,
If you have spark and fuel then that is a good sign that you aren't far off from running.
The voltage on pin 16 of the underdash socket should be battery voltage (12V). The communication between the socket and the pcm and tcm are on four different wires: a twisted pair of wires that are the CCD bus + (pin 3) and CCD bus - (pin 11) to the bcm and thence to the pcm pins 59 and 60 respectively, and the sci transmit wire from pin 7 to pin 65 at the pcm, and the sci receive from pin 6 to pin 75 at the pcm.
I would try to get the voltage on pin 16 up to 12v which may be what is needed to establish communication and code readout. The supply voltage for that pin is that of the ignition off draw on fuse 5 behind the dash, and it also powers all the courtesy lights, door locks and the bcm so something must be dragging down the voltage. I suspect the code reader needs to have the full 12 volts to function properly and that may be the reason you aren't getting codes rather than a communication issue.
Roland
PS Please 'rate' my answer as I am competing to be 'expert of the month', thanks.
