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Discussion Starter #1
dose any on know where i can get a obd programer for a 94 eldo and is it the
obd I or the obd II .. i think its the I 86 to present and the obdII is 96 to present >?? i have no clue
 

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The Cadillacs have a kind of built in diagnostic mode and code access. In other words, in many cases you dont need a scan tool. This info is from caddyinfo.com-

Reading Self-Diagnostic Codes



1. Turn the ignition switch ON. [Bruce notes: interestingly, the engine can be on or off]

2. On the cars up to 1995, on the Climate Control panel, press the OFF and WARM buttons simultaneously.

On the 96/97, push the OFF button and the top (warmer) end of the PASS rocker switch.

For 99 Deville, Turn the ignition switch to ON. Simultaneously press the following buttons until all VF display segments (IPC and CCP) are illuminated:
The digital IPC, the climate control center (CCC) OFF and warmer (RED) buttons
The analog IPC, the climate control panel (CCP) OFF and PASS warmer (up arrow) buttons

On the 98-2000, there seems to be some discussion:

GM ESI CD version:

1) Turn the ignition on, engine off. 2) Press the RESET button to acknowledge any warning messages present 3) Press the OPTIONS button on the driver information center and hold 4) While pressing the OPTIONS button, press the FUEL button 4 times within a 10 second
period. System will first enter automatic display mode followed by manual display mode.

Willy Spenser writes how to really do it for the 98+:
With the ignition key on, running or not makes no difference, press the on/off and info^(info/up) buttons for the DIC at the same time for about 2-3 seconds and release. It should then be itn the DTC check mode. Use the on/off button to select,when it
lists a question,i.e CODES?...,press on/off button to select that. The codes for each system will now appear if there are any. Otherwise it will say NO RSS, NO PCM,ETC... Use the reset info button to return or go back to the previous selection. When it asks you CLEAR CODES?...press the on/off button to clear them IF YOU WANT THEM CLEARED, if no, press reset info repeatedly until you exit. You can also exit by turning the ignition switch off.
This should work on '98 and up Sevilles.

3. Hold the buttons depressed until all display segments on the CC/DIC and instrument Panel Cluster (IPC) illuminate. On 1992 models, a separate combination panel houses both the ECC and DIC. On 1993-1994 models, the DIC is part of the instrument panel cluster.

4. After the segment check, the diagnostic trouble codes will be displayed. Each trouble code consists of the system identifier, a three-digit code identifier and the current or history identifier. If no codes are present for a system, a NO X CODE or NO X DATA message will be displayed.

E -- ECM trouble code
P -- PCM trouble code
C -- Current trouble code
H -- History trouble code
NO X CODE -- No code present (X represents the system)
NO X DATA -- Communication lines are not operating (X represents the system)
SEGMENT CHECK

The segment check is the illumination of the IPC, CCP, and DIC to verify that all segments of the liquid crystal displays [The display is actually florescent, not liquid crystal, but the GM text says LCD] are working. Only the turn signal indicators do not light during this check. Diagnosis should not be attempted unless all segments appear, as this could lead to misdiagnosis. If any portions or segments are inoperative, the faulty component should be replaced.

STATUS LIGHTS

When the system is placed into the Diagnostic Mode, the lighting elements on the climate control panel are used as status lights for various components. The mode of operation is determined by the light being ON or OFF. The use of each lighting element is different in ECM or BCM mode. For example, in the ECM mode the word OFF on the CCP will light to indicate a rich condition sensed by the left oxygen sensor input. In BCM mode, the same light is ON when the BCM commands the air inlet valve to the recirculate position.

TROUBLE CODE DISPLAY

After diagnostics is entered, any fault codes stored in computer memory will be displayed. For 1992 systems, codes may be stored or the ECM, BCM or SIR systems. For 1993-1994 the system has been expanded to include codes for the PCM, IPC, ACP, SIR, TCS, and RTD systems The Instrument Panel Cluster (IPC) replaces the BCM for 1993-1994 models, but serves the same purpose. ACP, SIR, TCS, and RTD stand for Air Conditioning Programmer, Supplemental Inflatable Restraint, Traction Control System, and Real Time Dampening, respectively. We will only deal with Engine control malfunctions here.

Each trouble code consists of the system identifier (E for ECM or P for PCM), a three-digit code identifier and the letter C or H to indicate current or history codes. If no codes are present for a system, a NO X CODE message will be displayed, with X representing the system.

On 1992 models, the RESET/RECALL button on the DIC will terminate diagnostics and return the vehicle to normal operation. For 1993+, depress the AUTO button on the ECC panel to return to normal operation.



SELECTING THE TEST SYSTEM (Click Here for System Diagram)

Following the display of trouble codes, the first available system will be displayed for testing. The first choice will be ECM on 1992 models and PCM on 1993+. When selecting a system to test, the following actions may be taken to control the display:

1. Depressing the HI button on the ECC will select the displayed system for testing.

2. Depressing the LO button on the ECC will display the next available system selection

3. Depressing the OFF button will stop the system selection process and return the display to the beginning of the trouble code sequence.

Logan
 

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Discussion Starter #4
the history ones thats problem that there where in the passed ???


allso i am getting codes for A011- A/C High Side Temp. Ckt.
A012- A/C Low Side Temp. Ckt. could that be that it has to be charged ??
 

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Umm...try again. I cannot quite figure this one out....

"the history ones thats problem that there where in the passed ???"

What are the codes you are getting? Or..do you know how to access the codes?

Logan
 

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Discussion Starter #6
S036- ELC Compressor Short to Ground/Open
A011- A/C High Side Temp. Ckt.
A012- A/C Low Side Temp. Ckt.

those are the codes im getting now and thats what they are

the compressor i think i fixed gotta look again
as far as the a/s could that be cuz it has to be charged
 
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