Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURES - A/C HEAD, A/C SWITCH FAILURE - MTC
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 | Turn the ignition on. With the DRBIII®, record and erase Body Computer DTCs. Ensure that the Rear Window Defogger is off. Put the Mode Control switch in the Recirc/Bi-Level (full left) position. Start the engine. With the DRBIII® in Sensor Display, read the A/C EBL Switch voltage and the Mode Switch voltage in each door position. Look for the following approximate voltage readings: Recirc-A/C position: A/C EBL Switch, 4.42 volts, Mode Switch, 1.32 volts. Panel-A/C position: A/C EBL Switch, 4.42 volts, Mode Switch, 3.20 volts. Mix-A/C position: A/C EBL Switch 4.42 volts, Mode Switch 5.07 volts. Panel-Heater position: A/C EBL Switch 10.79 volts, Mode Switch 3.20 volts. Mix-Heater position: A/C EBL Switch 10.79 volts, Mode Switch 5.07 volts. Floor-Heater position: A/C EBL Switch 10.79 volts, Mode Switch 7.16 volts. Does DRBIII® display the approximate voltages for each Mode Control switch position? Yes --> Go To 2 No --> Replace the A/C - Heater Control in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . |
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| 2 | Turn the ignition on. With the DRBIII®, erase Body Computer DTCs. Start the engine. Turn the Blower Control switch on. With the DRBIII®, read DTCs while slowly turning the Mode Control switch to each of the door positions several times. Does the DRBIII® display: A/C Head, A/C Switch Failure? Yes --> Replace and program the Body Control Module in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . No --> Test Complete. |
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