B1052 - HVAC Systems - Automatic

DTC B1052 Programmer Loss of Keep Alive Memory:

CIRCUIT DESCRIPTION
The HVAC programmer receives battery voltage through circuit 40 from the I/P fuse block, fuse 1.

CONDITIONS FOR RUNNING THE DTC
^ The ignition is ON.
^ The circuit is open or shorted.

ACTION TAKEN WHEN THE DTC SETS
^ Code B1052 is set.
^ The HVAC programmer will not operate.

CONDITIONS FOR THE CLEARING THE DTC
^ Using a Scan Tool.
^ A history DTC will clear when 40 consecutive ignition cycles have occurred without a malfunction.