ccrm

  1. Deathacus

    Bad Fan, CCRM, or sensor?

    Hey there! Ol' 94 MTX is running a bit hot. Here's what's up. Temp doesn't appear to be super stable on the guage, but within a tolerance. When I am driving the highway, the needle stays around "M", or at most between "M" and "R". When I go through the city, or the convenience of the Sheetz...
  2. C

    EEC-IV 172 & 542 (both fuel control) = CCRM, correct?

    1995 SHO 3.0L MTX Car has been parked for the past ~5 months because of rubber cooling system hoses needing replacing (long story). I FINALLY got it all back together & operating just today. About 10 minutes into 2 highway trips, up pops the CEL - hence pulling the codes once I got home. To...
  3. H

    93mtx primes,cranks, tach responds, but won't start

    Car has been running fine for half a year since having time to wrench during this whole covid thing. I've been driving it a few times a week since March with only 1 issue. Wife took the car out yesterday cause I needed the truck. She fired right up, and got her there. On the way back she...
  4. M

    '89 SHO with cooling fan issue

    I have an '89 MTX with 110,00km and a cooling issue. Cooling fans have not been turning on, leading to overheating. Fan does not turn on with AC turned on either. Coolant and Thermostat seems to be good and coolant is cycling through rad. Placed into test mode by bridge test plug to pull OBD -1...
  5. G

    FIXED: 93 ATX Cranks Fine, But No Power To Fuel Pump

    My 93 ATX quit Friday while I was driving and wouldn't restart (cranked fine). Verified inertia switch in trunk not tripped (open) - cranked, but still no run, so towed home. No CEL; No Codes, but noticed that with KO, I did not hear the fuel pump come on to charge the fuel injection system...so...
  6. Greg Corcoran

    ISO a known good D code CCRM and maybe an X2J too

    This is a bit long - so I apologize in advance - I have electronic gremlins in a stock '95 MTX with 81K (Bought it with 76K last year). Low speed fan didn't work when I bought it. The dreaded prior owner had diagnosed as a bad CCRM because jumping pins 3 to 1 had the fan run. He procured but...
  7. DNort

    SHO no start. Cooling fans on full blast? Possibly CCRM?

    TL;DR first Sometimes when I start my car, but not every time. My fuel pump doesn't sound like it is working and the cooling fans automatically come on full speed. The car will not start when this happens Most of the time the car will turn on normally. I'll hear the 2 second prime of the...
  8. T

    Looking for an M-Code CCRM.

    The CCRM went out on my '92, and I'm looking for a replacement asap. Thanks for reading!
  9. Garichette

    WARNING TO ALL SHO OWNERS

    If you have a no start situation and you believe it has to do with the ccrm (constant controle relay modual) on the front top radiator mount. Avoid major parts stores, In my experience with O'reilly's I was sold the wrong one not once but twice. I had not discovered this until I had replaced the...
  10. silversho92

    ccrm working cooling fan..???

    Cooling fan not working... not sure what is goin on. Pulled fan out and tested it with car battery hooked up to plug...and it kicked on. (Seemed to struggle tho..) but did spin. Then started car turned on max ac and put volt meter on (cooling fan) connector that comes from ccrm wire cluster...

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