While driving yesterday at 30mph the 4LO suddenly engaged. I thought the tccm was supposed to prevent this unless you were stopped in neutral. The light changed from 2hi to 4lo, but the knob was not touched. After a while as I slowed to a stop it switched back to 2hi.
Aside from the annoyance, this would probably be very bad if it happened at 75mph.....
Of course the "service 4wd" light came on.
The next day I scanned it and the 4wd light was off. Other codes came up p0171,p0340,b2575,b2615 and oddly enought a u1000 for the rear AC - and I don't have rear ac! The SES light just turned on that day.
The switch itself is in good condition - all contacts inside and out are in like new condition.
Is this a sign that my TCCM is on it;s way out? 18 years - I guess it's possible......
Aside from the annoyance, this would probably be very bad if it happened at 75mph.....
Of course the "service 4wd" light came on.
The next day I scanned it and the 4wd light was off. Other codes came up p0171,p0340,b2575,b2615 and oddly enought a u1000 for the rear AC - and I don't have rear ac! The SES light just turned on that day.
The switch itself is in good condition - all contacts inside and out are in like new condition.
Is this a sign that my TCCM is on it;s way out? 18 years - I guess it's possible......