Voyager V6-3.3L VIN R (1999)
Evaporator Temperature Sensor / Switch: Testing and Inspection
Evaporator Probe Temperature Diagnostics
The evaporator probe can be tested by using the INTERMITTENT LED to display the actual temperature the sensor is reading. The HVAC control
module can only display temperatures from 1 to 99 degrees. To read the temperature, perform the following:
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Set Blower motor to any speed other than OFF
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Set A/C to ON, if A/C Clutch does not engage make sure Fail Codes 5 and 6 are cleared. To clear the error code 5 and 6 the evaporator probe
and/or the wiring repair needs to be completed. Then, press and hold the intermittent wipe button for 5 seconds.
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Run Diagnostics (Depress REAR WIPER and REAR WASH)
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When Diagnostics is complete, Cycle to Level 4.
Display Sequence is as follows:
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REAR WIPER LED will display the Level
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INTERMITTENT LED will display ten's digit
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Short Pause
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INTERMITTENT LED will display the one 5 digit.
The HVAC control module will continue to cycle the Level and then Temperature until the level is changed or Calibration Diagnostics and Cooldown
test is exited.
