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I have great heat on passenger side but no heat on drivers side on a 1993 cadillac deville

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You need a door blend actuator......

Posted on Jan 04, 2011

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Posted on Jan 02, 2017

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Got a1997 cadillac deville got heat on passengers side no heat on drivers side could you tell me the problem.no defrost on drivers side either help please


DTC B1340 Air Mix Door #1 Movement Problem !
The heater and A/C programmer supplies voltage to an internal motor that drives the air mix door. The heater and A/C programmer monitors the air mix door position feedback from a sensor on the motor. If the air mix door is requested to move but the feedback voltage does not change, the heater and A/C programmer will store DTC B1340. If the air mix door feedback indicates that the feedback is near the hot or the cold extreme, the DTC will not set. Evaluate the operation of the air mix door through self diagnostics as described in the test description.
Test Description
Perform the Diagnostic System Check before continuing with the diagnosis of this DTC.
A Scan Tool allows for the direct control of the air mix door by observing the following conditions:
• The air mix door position feedback value
• The value`s difference from the air mix door commanded position value
These readings indicate a fault internal to the heater and A/C programmer in the air mix door sensor feedback.

Did you perform the Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check
2
With the engine running, connect a Scan Tool .
Turn the dual zone to OFF (passenger temperature offset at 0 or OFF).
Exercise the suspect actuator using the temperature control on the control assembly.
Is the door being commanded (COM) to the proper high and low values?
COM High 100 %
COM Low 0 %
Go to Step 3
Go to Step 4

If you are unfamilier with this , i suggest you take it to a ASE certified repair shop or the dealer .

Jan 25, 2016 | Cadillac Cars & Trucks

1 Answer

No Heat Passenger Side. I have a 1999 Cadillac Deville. The problem is I can't get heat on the passenger side. Air blows but it is cold. I do have heat on the driver?s side. My car has the spate...


Hello: You have a failed temperature control actuator for the passenger air mix door. Remove the glove box and the close out panel under the dash on the passenger side. You will see two silver rods going from the actuators (mounted on the top and bottom of the heater/a/c programmer) Turn key on (engine off) Turn the a/c heater control on. Go from 60 to 90 or 90 to 60 and watch the rods the one that doesn't move is the failed one. The actuator is held in place by two 7mm screws and one electrical connector. When installing the new actuator have the temp set at 60 when you hook up the linkage. The passenger side set at full cold.

Nov 16, 2010 | 1999 Cadillac DeVille

1 Answer

1998 DeVille: 1999 cadillac deville drver side heat blows hot pa...


The blend door for the passenger side is not connected right or functioning correctly. Try seeing if the dial on the armrest on the passenger side is not rotated one way or the other too much.

May 15, 2010 | 1998 Cadillac DeVille

3 Answers

93 cadillac fuse panel location?


There are three fuse blocks in most late model Cadillacs. The engine compartment fuse block, the MaxiFuse relay center and the rear compartment fuse block.

1991-93 Deville, are equipped with a fuse block located in the rear of the engine compartment. There is also a fuse/relay block, located in the glove box behind an access panel, or on the passenger side, under the dash.

Dec 08, 2009 | 1993 Cadillac DeVille

1 Answer

Air cond warm coming out of driver side dash,warm passenger side


you want me to post a free solution yet want to charge for info I requested for free?

Jun 18, 2009 | 2002 Cadillac Deville

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