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Is the compressor kicking on?
Do you know what the pressures are in the system?
SEGMENT CHECK The purpose of illuminating the IPC is to verify all segments of the LED displays are working. The turn signal indicators do not light during this check. Further diagnosis should not be attempted unless all segments appear, as this could lead to misdiagnosis. If any portions or segments of the IPC displays are inoperative, the IPC must be replaced. DIAGNOSTIC TROUBLE CODE (DTC) DISPLAY After diagnostics are entered, any DTCs stored in computer memory will be displayed. Each DTC consists of the system abbreviation (P - PCM, IP - IPC, AC - ACM, SD - SIR, TCS -TCS, RS - RSS, PZ - PZM, IR - IRC, RF- RFA, CC - CCP or PH -PHN), a four digit identifier, and the letter C or H. All DTCs for each system are displayed together, in consecutive order by their four digit number (lowest first - i.e. PZ 2016, PZ 2096, etc.). The final digit of the code, a "C" or an "H", is used to indicate whether the DTC is current or history. A "C" means the malfunction was still present the last time the diagnostic test was run, while "H" means the failure was not present the last time the DTC was tested for. If no DTCs are present for a system, a "NO X CODES" message (with X being the system i.e. PCM, IPC, ACM, SIR, TCS, RSS, PZM, IRC, RFA, CCP or PHN) will be displayed. If the communication line to a component is not operating, a "NO X DATA" message will be displayed, indicating that the IPC could not communicate with that system. At any time during the display of DTCs, if the "MODE" button on the IPC is pressed the system will exit "Service Mode" and go back to normal vehicle operation. SELECTING THE SYSTEM After trouble codes have been displayed, a specific vehicle system PCM, IPC, ACP, SIR, TCS, RSS may be selected for testing. The first available system will be automatically displayed (i.e. PCM?). While selecting the system to test, any of the following actions may be taken:
SELECTING THE TEST TYPE Having selected a system, the first available test type will be displayed (i.e. PCM DATA?, PCM CLEAR CODES?). While selecting a specific test type, any of the following actions may be taken:
CLEAR CODES Selection of "CLEAR CODES?" test will result in the message "CODES CLEARED" being displayed along with the selected systems name. This message will appear for 3 seconds and then return to the next available test type. EXITING DIAGNOSTIC MODE To get out of the diagnostic mode anytime during the test, depress the "MODE" or "DEFOG" button, or turn the ignition switch "OFF." Trouble codes are not erased if this is done prior to selecting "CODES CLEARED."
That's all the information that I have on it. Let me opt out and we can re list the case to see if there may be another expert who may have more. No need to reply as that will lock the question back to me, someone should be along shortly. Thank you for your patience.