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Isuzu NPR transmission diagnostic code definitions needed.

I need the Transmission diagnostic flash code definitions for 1999-2004 Isuzu NPR. This truck currently has codes 11, 15, 19, 21, 24 & 35. It shifts normally and appears to work properly.

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Posted on Jan 02, 2017

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SOURCE: need free service manual for 1997 isuzu npr truck

SERVICE MANUALS NOT FREE.YOU HAVE TO BUY THEM.

Posted on Oct 30, 2009

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carlsbiz
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SOURCE: 2000 ISUZU TROOPER WITH AUTO TRANSMISSION. CHECK

If the fluid is up -
it could be a vacume loss or the shifting module..
The shifting module is what tells it to shift - and it is controled by vacume pressure..

Posted on Jul 08, 2009

dsacco86
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SOURCE: codes given are p0700 and p1781. Anyone know what these codes stand for? Thanks

The Transmission shop lacks the skills and tools need to do the job. It's best to call around for a shop that has a proper scanner to talk to the TCM computer. The real trouble codes are in there. The best place would be a shop that has a ASE mechanic on duty or the Dealership.

Here what the two codes means:

P0700 Transmission Control System Malfunction
It means you have a trans control problem in the trans computer.
You will need to get it on a trans capable scanner to see what the trans code or problem is.

the P1781 is set during engine start up when the ECM & TCM do not communicate properly during initial power up. It will only illuminate the service light if the condition occurs in 2 consecutive start cycles, but the DTC will be stored in the failure records after the first cycle.

Posted on Apr 15, 2009

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SOURCE: trouble with the transmission solenoid

USUALLY A SHIFT SOLENOID DTC IS REPAIRED BY REPLACING THE TRANS SOLENOID PACK ASSEMBLY..LOCATED ON OUTSIDE OF TRANSMISSION..YOU MUST BE CAREFUL WHEN CHANGING PACK..CLEAN ALL DIRT/DEBRIS FROM OUTSIDE OF PACK..YOU DON'T WANT ANY DIRT TO ENTER TRANSMISSION..SOLENOID IS A SMALL BOX LOCATED ON SIDE OF TRANS FACING FRONT OF VEHICLE..YOU MUST REMOVE TRANS COOLER LINE HOSES FROM FITTINGS ON TRANS..REMOVE INPUT SPEED SENSOR..UNPLUG PACK..8MM SCREW HOLDS IT..3 BOLTS HOLD PACK TO TRANS..YOU MUST CLEAN ALL GASKET RESIDUE THOROUGHLY BEFORE INSTALLING PACK..I'D RECOMMEND GETTING SOMEONE WHO HAS DONE THIS BEFORE IF YOU ARE NOT COMFORTABLE DOING THIS..I HOPE THIS HELPS

Posted on Dec 30, 2009

Tnsiouxfalls
  • 617 Answers

SOURCE: I have trouble codes P0700 (transmission control

P1192 Post-catalyst Fuel Trim System Bank 1 Check your Oxygen Sensor Heater Circuit, could be dirty or loose wires or just stop working. Usually you have 4 of these under your car so check all. Fault Code P0700


Message:
Here's what my service manual says:

EATX Controller DTC Present

This SBEC III or JTEC DTC indicates that the EATX or Aisin controller has an active fault and has illuminated the MIL via a CCD (EATX) or SCI (Aisin) message. The spscific fault must be acquired from the EATX via CCD or from the Aisin via ISO-9141.

Here's what I know: MIL=malfunction indicator light; DTC=diganostic trouble code; CCD=Chrysler collision detection. Beyond that, I'm clueless. Sounds like it needs to be read out at the dealer. Then again, if it was a one-time glitch, it might clear itself after several drive cycles.

Posted on Feb 18, 2010

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