2001 DHS-deciphering codes

Sorry guys...should have thought of that...


DTC B0159 Outside Air Temperature Sensor Circuit Range/Performance
DTC B0164 Passenger Compartment Temperature Sensor #1 (Single Sensor or LH) Circuit Range/Performance
DTC B0174 Output Air Temperature Sensor #1 (Upper; Single or LH) Circuit Range/Performance
DTC B0179 Output Air Temperature Sensor #2 (Lower; Single or LH) Circuit Range/Performance
DTC B0184 Solar Load Sensor #1 CKT Range
DTC B0189 Solar Load Sensor #2 CKT Range
DTC B0429 Temperature Control #3 Rear Circuit Range/Performance
DTC B0510 RH Panel Discharge Temp Sensor Failure
DTC B0515 RH Heater Discharge Temp Sensor Failure
DTC B0520 Rear Discharge Temp Sensor Failure
DTC B1004 Keep Alive Memory (KAM)
DTC B2556 Interior Lamp Rheostat Circuit Range
DTC B2641 Delayed Exterior Lighting Ctrl CKT Range
DTC B2646 Ambient Light Sensor Circuit Range
DTC B1860 Driver Lumbar Vert Sensor CKT Malf

miket007 said:

Thanks Ranger. I know for a fact the 0429 code is legit...my rear temp controls don't do anything....so I am sure that needs to be replaced. The next item I am trying to tackle is the module that controls air temp in front between drivers and passengers. I don't use the auto mode much at all, but with both the pass and drivers either all the way hot/cold, there is a big difference in temps between each side. It seems to take forever for either to get cold with AC. I didn't see any codes pointing to a module....any idea which one it might be given the symptoms. It would be great to have a flow diagram to help pinpoint these items based on symptoms.

Click to expand...

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with both the pass and drivers either all the way hot/cold,
there is a big difference in temps between each side
look at all the AC related codes you posted -

Outside Air Temperature Sensor -
Passenger Compartment Temperature Sensor #1 -
Output Air Temperature Sensor #1 -
Output Air Temperature Sensor #2 -
Solar Load Sensor #1 -
Solar Load Sensor #2 -
RH Panel Discharge Temp Sensor Failure -
RH Heater Discharge Temp Sensor Failure -
Rear Discharge Temp Sensor Failure -

your climate control system is completely confused -

it doesn't know the outside temp -

it doesn't know the cabin temp -

it can't detect the duct temps -

I'm surprised it even blows air -

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if all these codes are "current" -
I would start looking for a faulty ground under the dash -

if all these codes are not current -

clear all the codes - and see what codes return -