Heating & A/C System: 76

76-AC REQUEST OUTPUT SIGNAL LOW WHEN DRIVEN HIGH

For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.

- When Monitored:
With the ignition on.

- Set Condition:
If the A/C Heater Control detects voltage below 1.51 volts on the (C221) A/C Switch Sense circuit when the A/C is switched off.

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. for stored DTC test procedures. Heating & A/C System

Perform 74-AC REQUEST OUTPUT SIGNAL TOO LOW diagnostic test procedure.