Set Conditions

WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: This DTC must be active for the results of this test to be valid. Do not perform this test if this DTC is stored. Refer to HVAC System Test (MTC) for stored DTC test procedures.

Set Condition:
If the A/C Heater Control detects voltage below 1.51 volts on the (C105) HVAC MUX Control circuit when the A/C is switched off.

Refer to 74-AC REQUEST OUTPUT SIGNAL TOO LOW (MTC) for the diagnostic test procedure.